Posts by royfellows

Showing 4388 results below:

Author	Message
Topic: Calendar 2015 Proceeds
royfellows	Forum: General Chat Posted: 04/11/2014 21:58:44 Subject: Calendar 2015 Proceeds Its very fair to share between a worthy mines trust and a rescue organisation. I like.:thumbup:
Topic: Fellows lamps forum.
royfellows	Forum: Lamps & Lighting Posted: 04/11/2014 16:41:27 Subject: Fellows lamps forum. I am announcing the last Lynx lamp in the line up, the X1000. [link]Personal-Album-128-Image-97507[linkphoto]Personal-Album-128-Image-97507[/linkphoto][/link] This lamp uses a l
Topic: Roy's Photo Lamps
royfellows	Forum: Lamps & Lighting Posted: 04/11/2014 15:43:03 Subject: Roy's Photo Lamps Looking at this thread is starting to remind me of a western movie I once saw, "The good, the Bad, and the Ugly" :lol: Anyway, I have just finished the latest, and I have to say its to
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 04/11/2014 15:30:13 Subject: New 350mA driver, V useful Aware, hence my final comment. ;D
Topic: Any Ideas What This Is?
royfellows	Forum: General Chat Posted: 04/11/2014 14:06:59 Subject: Any Ideas What This Is? Peter, any date on the catalogue or whatever?
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 04/11/2014 13:20:11 Subject: New 350mA driver, V useful Well here it is now they arrive from Farnell. [link]Personal-Album-128-Image-97503[linkphoto]Personal-Album-128-Image-97503[/linkphoto][/link] Easy to work with and solder but la
Topic: SDS Drill capacity comparison
royfellows	Forum: SRT Equipment & Training Posted: 03/11/2014 22:32:08 Subject: SDS Drill capacity comparison and Roys famous red Mazda with moss growing round the windows and grey back wing was originally bought 3 yrs old and £3K off the hammer at BCA Walsall with 80K on the clock. By time it went to the jun
Topic: Calendar 2015 Proceeds
royfellows	Forum: General Chat Posted: 03/11/2014 22:22:28 Subject: Calendar 2015 Proceeds I think I vote for Shropshire Mines Trust
Topic: SDS Drill capacity comparison
royfellows	Forum: SRT Equipment & Training Posted: 03/11/2014 16:37:29 Subject: SDS Drill capacity comparison I have bought a load of stuff off eBay and been lucky every time, but then again the word is lucky. I tend to look at stuff and go by gut feelings, maybe I have a feel for it after years of ducking an
Topic: taylors adit
royfellows	Forum: New recruits! Posted: 03/11/2014 12:45:36 Subject: taylors adit I have to come in here. As far as Cambrian Mines Trust is concerned which owns the site there is no access to the east passage. I ventured along there for just a short distance and felt uncomfort
Topic: SDS Drill capacity comparison
royfellows	Forum: SRT Equipment & Training Posted: 02/11/2014 20:54:06 Subject: SDS Drill capacity comparison I bought a SH Dewalt 24V DC224 off eBay for £100 a few years ago. Drill last OK but later batteries down to about 4 holes drilling for 10mm through bolts in rock. Shopped for new battery on
Topic: Case for SDS Drill
royfellows	Forum: SRT Equipment & Training Posted: 01/11/2014 18:40:35 Subject: Case for SDS Drill Possibly worth a mention, dry bags are available from marine chandlers and similar, I bought alarge one for £12 from McSalvors. Strong and PVC coated, intended to do what it says.
Topic: Harnisha Burn Mine - be careful.
royfellows	Forum: North East England Posted: 01/11/2014 14:36:21 Subject: Harnisha Burn Mine - be careful. Problem I now have is doubts about when I was in, unsure whether Easter or August. Senile decay. :(
Topic: Harnisha Burn Mine - be careful.
royfellows	Forum: North East England Posted: 01/11/2014 13:20:58 Subject: Harnisha Burn Mine - be careful. [quote="Roger the Cat"]I'm intrigued - what was this 'Huge Detonation' in the 'Old Limestone Quarry' and why?[/quote] and when was it. I am still trying to sort all this out in my mind
Topic: Harnisha Burn Mine - be careful.
royfellows	Forum: North East England Posted: 31/10/2014 18:31:39 Subject: Harnisha Burn Mine - be careful. I passed the new fall Easter and old fall with tight sqeeze was unchanged. New fall needs attention, or leave for the rest to come down and then clear a road through? I think it better to p
Topic: Harnisha Burn Mine - be careful.
royfellows	Forum: North East England Posted: 31/10/2014 16:19:50 Subject: Harnisha Burn Mine - be careful. I noted this earlier this year, but may now be worse. It appeared to me maily caused by timber rotting. This could be replaced bur would need to be brought to site.
Topic: Roy's Photo Lamps
royfellows	Forum: Lamps & Lighting Posted: 31/10/2014 10:56:38 Subject: Roy's Photo Lamps The most recent started when I obtained a Chinese underwater lamp from HK. A bit on the heavy side at 550 grams I eventually decided it would possibly make a future diving lamp or similar if I could g
Topic: Roy's Photo Lamps
royfellows	Forum: Lamps & Lighting Posted: 31/10/2014 10:39:01 Subject: Roy's Photo Lamps To continue: My first was a sort of self contained unit built early 2009 and using 3 X P7s, (remember these?). Made in a plastic box and with copper heatsinking it had a sort of self designed swi
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 31/10/2014 09:28:04 Subject: New 350mA driver, V useful Some day I will get one of the people who actually understand the data sheets to explain one to me! :lol: At least not written in Chinese Anyway, opened a new thread on the
Topic: Roy's Photo Lamps
royfellows	Forum: Lamps & Lighting Posted: 31/10/2014 09:24:25 Subject: Roy's Photo Lamps I have started this as a blow by blow account of a new one off project. It started with a Lynx headset trashed by a machining error which I didn't know what to do with. In the end I decided that cut d
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 30/10/2014 21:52:49 Subject: New 350mA driver, V useful At the 3 terminal (R adj) open default of 150mA running a Lynx pilot off one of my 7.8V 5200 mAh power packs! You aught to be on the stage Chris :lol: Joking aside I will ru
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 30/10/2014 13:22:30 Subject: New 350mA driver, V useful Unless I miss something its 350mA if R adj = about 6 ohms? Data sheet requires quite a bit of study as I have been scratching my head over it for about 10 minutes :lol:
Topic: New 350mA driver, V useful
royfellows	Forum: Lamps & Lighting Posted: 30/10/2014 13:02:29 Subject: New 350mA driver, V useful Hi fellow bat burners Just bumped into this on Farnell http://uk.farnell.com/on-semiconductor/nsi50150adt4g/led-driver-pwm-50v-to-252-3/dp/2382343 A 350 mA driver based on self bi
Topic: LiPo batteries
royfellows	Forum: Lamps & Lighting Posted: 29/10/2014 12:35:22 Subject: LiPo batteries Anyone mind if I bring this back on topic? :lol: Anyway, joking aside, I strongly recommend that anyone considering using LiPos do a bit of research before sticking them on the back of
Topic: 18650 Batteries
royfellows	Forum: Lamps & Lighting Posted: 29/10/2014 09:45:11 Subject: 18650 Batteries Out of all the 'JunkFire' brands sold on the Hong Kong sites the Trustfire 2500 mAh are possibly most 'passable'. Not 2500 mAh, more like 2200, but they do last and do what they say on the tin. I used
Topic: Ore Chute into Hangingshaw Branch Level from Proud's Sump Flat (photo)
royfellows	Forum: North West England Posted: 14/10/2014 16:39:58 Subject: Ore Chute into Hangingshaw Branch Level from Proud's Sump Flat (photo) [quote="davel"] Some of us do get out of Wales from time to time, even venturing as far as Nenthead on occasion. ;D Would you believe that a couple of us had a Middleclough to Smallcle
Topic: mine explorer website and a new mine to explore
royfellows	Forum: North Wales Posted: 09/10/2014 11:18:47 Subject: mine explorer website and a new mine to explore Caving Gear was having similar problems but now appears to be back on line. In all fairness to an extremely buisy and good man, I think Miles should make a statement on the situation.
Topic: Browns Folly
royfellows	Forum: South West England Posted: 07/10/2014 16:55:49 Subject: Browns Folly [quote="Popeass1"]Brian deserves a medal for all the work he does down there to keep the history alive. I'll pass on your gratitude to him when I speak to him next.:thumbup:[/quote] Me
Topic: Fellows lamps forum.
royfellows	Forum: Lamps & Lighting Posted: 07/10/2014 16:48:14 Subject: Fellows lamps forum. Lynx X5000 latest. I have dumped the external switches in favour of the integrated Knitter waterproof switches fitted to the X3000, so the lamp looks the same as that one except for having
Topic: Browns Folly
royfellows	Forum: South West England Posted: 05/10/2014 21:59:26 Subject: Browns Folly [quote="crickleymal"]Had a pleasant trip to Browns this Saturday. We did a circular route taking in Clapham Junction, the ferret cage, the stables and the truck. Hats off to whoever has cleaned up the
Topic: Stanhopeburn Mine (photo)
royfellows	Forum: North East England Posted: 05/10/2014 12:54:09 Subject: Stanhopeburn Mine (photo) [quote="legendrider"]Cambokeels???? :confused: Photograph: [link]Stanhopeburn-Fluorite-Mine-Archive-Album-Image-006[linkphoto]Stanhopeburn-Fluorite-Mine-Archive-Album-Image-006[/
Topic: Oldham GL16 Lamps and Li Ion batteries
royfellows	Forum: Lamps & Lighting Posted: 30/09/2014 14:34:09 Subject: Oldham GL16 Lamps and Li Ion batteries [quote="Lecko"] BUT, in all my years of working as a mining electrician, I never saw AN Oldham battery last more than four years [b]in full service.[/b] We were lucky to see two years of go
Topic: Box Back Door Locked
royfellows	Forum: South West England Posted: 30/09/2014 11:36:59 Subject: Box Back Door Locked Are the incidents being referred to the ones which lead up to the original gating or have there been more recent ones?
Topic: How dangerous is mine exploration?
royfellows	Forum: General Chat Posted: 29/09/2014 19:09:21 Subject: How dangerous is mine exploration? [quote="Graigfawr"]Descent magazine has published annual summaries for about 20 years with a short narrative for each call out. The summaries include all mine exploration call outs. Caving
Topic: Box Back Door Locked
royfellows	Forum: South West England Posted: 29/09/2014 15:37:56 Subject: Box Back Door Locked Everyone making assumptions. In the event that the locks were fitted by some one who had no authority to do so then they would constitute a 'Private nuisance' to anyone else who had a right
Topic: Oldham GL16 Lamps and Li Ion batteries
royfellows	Forum: Lamps & Lighting Posted: 28/09/2014 18:55:21 Subject: Oldham GL16 Lamps and Li Ion batteries [quote="Lecko"] But 40 years off of a lead acid battery???? Come on, that's a fairy tale!! My Tech College teachers would be rolling around on the floor over that one... [/quote]
Topic: Oldham GL16 Lamps and Li Ion batteries
royfellows	Forum: Lamps & Lighting Posted: 28/09/2014 16:49:02 Subject: Oldham GL16 Lamps and Li Ion batteries [quote="wheldale"]Back on topic, what is the life span of a li-ion lamp compared to a lead acid lamp?[/quote] You will get opinions on this rather than facts, and this will be the best anyo
Topic: Pantywrach Mine
royfellows	Forum: North Wales Posted: 19/09/2014 17:27:53 Subject: Pantywrach Mine Yes, in a fall. This comes down from the winze/understope at the end of the upper adit. I dropped this on SRT once, horrifically dangerous hanging deads, and no way into the DA at the bottom. Shortly
Topic: Pantywrach Mine
royfellows	Forum: North Wales Posted: 18/09/2014 22:25:35 Subject: Pantywrach Mine [quote="Rheidol United"]Thanks for the info - yes I have a lot to learn about those mines! I also went to Bwlchyplwm and Catherine & Jane - some interesting adits at C&J, and spectacular views and ope
Topic: Oldham GL16 Lamps and Li Ion batteries
royfellows	Forum: Lamps & Lighting Posted: 18/09/2014 09:28:51 Subject: Oldham GL16 Lamps and Li Ion batteries [quote="exspelio"]Doesn't answer my question Roy.[/quote] I am sorry about this, maybe I should have been a politician, missed my vocation in life. New Stuff has explained it very well
Topic: Oldham GL16 Lamps and Li Ion batteries
royfellows	Forum: Lamps & Lighting Posted: 17/09/2014 22:57:18 Subject: Oldham GL16 Lamps and Li Ion batteries Be careful charging Li Ion batteries, or keep a good fire extinguisher handy. Lead acid chargers are entirely unsuitable and some of the chargers supplied with Chinese Li Ion are not suitable either a
Topic: Pantywrach Mine
royfellows	Forum: North Wales Posted: 17/09/2014 22:50:09 Subject: Pantywrach Mine [quote="Rheidol United"]Hi all I was walking along the lane from Penrhyndeudraeth to Rhiwgoch farm a few days ago, and came across a few adits. At SH62044013 were two adits, one was only a few fe
Topic: Oldham charger prices
royfellows	Forum: Lamps & Lighting Posted: 17/09/2014 09:40:11 Subject: Oldham charger prices Mr Lecko, thanks for this. Its now making sense. Do you know anything about the construction of the T2 battery? Holding one up to the light it appears to have 4 cells rather than 2, we
Topic: Oldham charger prices
royfellows	Forum: Lamps & Lighting Posted: 16/09/2014 21:37:18 Subject: Oldham charger prices But in the old days of Ts and the virtually indestructable but slightly heavier T2 you got away with it. Treat a T6 like that and it wont last 12 months. And Chris, someone will correct me
Topic: Oldham charger prices
royfellows	Forum: Lamps & Lighting Posted: 16/09/2014 18:25:10 Subject: Oldham charger prices [quote="ChrisJC"]Charging from 5V? what sort of cells are they?, or is there a charging circuit built in? I know of no cell chemistries for which 5V is the perfect charging voltage. Chris.<
Topic: Oldham charger prices
royfellows	Forum: Lamps & Lighting Posted: 16/09/2014 15:39:13 Subject: Oldham charger prices [quote="SimonRL"][quote="royfellows"]I wore an Oldham on saturday at Pumsaint, it was a blast from the past.[/quote] Were the guides using their new H2s?[/quote] There was only o
Topic: Oldham charger prices
royfellows	Forum: Lamps & Lighting Posted: 16/09/2014 09:28:06 Subject: Oldham charger prices I wore an Oldham on saturday at Pumsaint, it was a blast from the past. Actually, never switched it on Had a dive lamp version of an X5000 in my hand with its fag packet size 12V 5.2 AH Lith
Topic: Autonomous headlamp design enquiry
royfellows	Forum: Lamps & Lighting Posted: 15/09/2014 16:10:38 Subject: Autonomous headlamp design enquiry [quote="Peter Burgess"]If you improve the lamp efficiency too much, people will forget how to charge up the batteries.[/quote] Go away :lol:
Topic: Autonomous headlamp design enquiry
royfellows	Forum: Lamps & Lighting Posted: 15/09/2014 14:06:11 Subject: Autonomous headlamp design enquiry Fellows Lamp Mission Statement Do continuously strive to produce lamps that are more efficient so as to provide exceptional performance combined with a reasonable weight and smaller lighter
Topic: Autonomous headlamp design enquiry
royfellows	Forum: Lamps & Lighting Posted: 15/09/2014 12:15:27 Subject: Autonomous headlamp design enquiry The problem is that if you take away the necessity for people to think and make decisions they will entually loose the ability to do so. Keep dumbing everything down and eventually we all b

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