Did I just win a boatload of Pihers?

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Did I just win a boatload of Pihers?

Postby shakti » Sun Apr 04, 2010 1:45 pm

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... _906wt_962

The photos are blurry. But I got the seller to send me another photo which shows the size. Looks to be correct for 1/2W Pihers. They are kind of reddish, perhaps more so than most Pihers I've seen, but if nothing else they will look good in pre-67/68 builds. We'll se... 8)
JTM45 RS OT, JTM45 BB type I, JTM45/100, JTM100 black flag, JMP50 1986, JMP50 1987, JMP100 12xxx, AC30, BFSR, Boogie Mk 1, Hiwatt JPP100, CP103, DR103
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Re: Did I just win a boatload of Pihers?

Postby neikeel » Sun Apr 04, 2010 1:54 pm

Looks promising 8)

I did not bid as I was not sure, and it is Iskras I am trying to pin down now :roll:
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Re: Did I just win a boatload of Pihers?

Postby frenchie » Sun Apr 04, 2010 10:27 pm

shakti , you should have looked a little further , there was an even more interesting item than this one , only an eagle eye like me could have saw it 8) ...there was a lot of old english mismatched 680r , the guy apparently don't have a clue on how reading color codes , so let's say i just scored a bunch of 68K pihers in 0.5w as well as other things 8) 8) 8) 8) and these are clearly pihers ( close up pics and all ! ) .... i must say i'm happy :D cuz now i've got a COMPLETE marshall board piher 0.5w resistor kit , no missing value no more ! how cool is this ..... :mrgreen:
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Re: Did I just win a boatload of Pihers?

Postby Doug H » Mon Apr 05, 2010 12:21 am

I'd like to know how my nightly searches missed these items?? Is it because it's ebay UK?
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Re: Did I just win a boatload of Pihers?

Postby shakti » Mon Apr 05, 2010 5:12 am

Well, if the ones I got are indeed Pihers, there's 39 of the 68ks in there, so I'm set for those (as well as 270k, 220k, 100k, 10k, 150k, 47k, 56k, 5.6k, 1.5k and many more). All this remains to be seen though...
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Re: Did I just win a boatload of Pihers?

Postby frenchie » Mon Apr 05, 2010 5:43 am

unfortunately i see no color markings on your shakti .... i strongly think those are from the letter markings kind , but it's not bad news anyway , in the 60-70 the resistor building factories reserved the letter marking for the highest quality resistors ( at least in french resistors manufactures ) ....
you may be not have scored the type of pihers we all know , but i'm sure you'll be able to make pretty nice sounding amps with those ....keep us updated when you have them :wink:
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Re: Did I just win a boatload of Pihers?

Postby shakti » Mon Apr 05, 2010 6:08 am

Will do! But please educate us on this "letter marking" and "colour marking" thing. What separates these from Marshall-used Pihers (assuming for now that they are Pihers)?
JTM45 RS OT, JTM45 BB type I, JTM45/100, JTM100 black flag, JMP50 1986, JMP50 1987, JMP100 12xxx, AC30, BFSR, Boogie Mk 1, Hiwatt JPP100, CP103, DR103
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Re: Did I just win a boatload of Pihers?

Postby frenchie » Tue Apr 06, 2010 1:30 pm

i met an old retired electrical engeneer who was working in an hi end audio transformer factory in the 60's ( trannies sealed with glass pearls and stuff ) , he had friends working in resistor factories , what he told me is that usually the resistors with letter markings for ohmage were better built back in the day ( markings like the ones you see on kiwame resistors ) , something about the cooking of the ceramic body of the resistors which was done better ... i have to ask him again for more precisions... but i believe him ( fuckin' nice guy , and great source for old parts :mrgreen: )...
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Re: Did I just win a boatload of Pihers?

Postby frenchie » Mon Apr 12, 2010 2:51 pm

well ...i have to say ...my ebay auction wasn't much of a bargain in the end ....i mistaken the color code on the pihers i scored , light of the pic made brown appear like orange ...so i don't have 68k pihers ...just 680 ohm ones :( ...shitty pics ...hopefully i didn't pay them too much.
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Re: Did I just win a boatload of Pihers?

Postby shakti » Mon Apr 12, 2010 3:35 pm

Sorry to hear that...but I'm sure we can work out a deal when I get mine... :lol: Got any more of them Iskras...? 8)
JTM45 RS OT, JTM45 BB type I, JTM45/100, JTM100 black flag, JMP50 1986, JMP50 1987, JMP100 12xxx, AC30, BFSR, Boogie Mk 1, Hiwatt JPP100, CP103, DR103
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Re: Did I just win a boatload of Pihers?

Postby frenchie » Mon Apr 12, 2010 4:18 pm

shakti wrote:: Got any more of them Iskras...? 8)


....depends on the values ; still got some 270k and 33k , but it's pretty much dead for the rest now
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Re: Did I just win a boatload of Pihers?

Postby shakti » Wed Apr 21, 2010 8:30 am

Well, it was too good to be true. These aren't Pihers, at least not the kind we're used to. As frenchie quite rightly noted, they don't have colour codes on them (I could swear they did by the photos, but there you go), the value is actually written on each resistor in letters and numbers. The body has a shape which is more similar to Beyschlag, i.e. with a defined ridge on each side where the body increases in size, and the body is more red than brown. They all have markings that say "MNT".

Accompanying this batch was two small slips, one labeled "B.H. Component Factors Ltd" which says "Due to resistor shortages Internationally, this kit is from 22 ohms - 2M2", and the other one says "Due to a change in manufacturing methods, this kit may contain new-style metal films, which are colour coded. These will replace the red "letter coded" types, and are being supplied temporarily at the old price. New higher prices will apply from April 1st, 1974".

So what exactly have I got here? Are these resistors any good? All of mine are letter marked, so presumably not metal film. If they are carbon film from the early 70s, they might still be really nice resistors for vintage style builds, I guess?
JTM45 RS OT, JTM45 BB type I, JTM45/100, JTM100 black flag, JMP50 1986, JMP50 1987, JMP100 12xxx, AC30, BFSR, Boogie Mk 1, Hiwatt JPP100, CP103, DR103
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Re: Did I just win a boatload of Pihers?

Postby shakti » Wed Apr 21, 2010 1:13 pm

I'm trying to find out if these are carbon film or metal film. Any specific way to find out? I cut one in half, it has a white core with a hole in the middle, but I don't know how to identify it. I tried to find the thread with a photo of cross-sections of all the old resistor types used in Marshalls, but couldn't find it. Anyone have a link?

If they're CF, I am going to try them in some amps to see how I like them.
JTM45 RS OT, JTM45 BB type I, JTM45/100, JTM100 black flag, JMP50 1986, JMP50 1987, JMP100 12xxx, AC30, BFSR, Boogie Mk 1, Hiwatt JPP100, CP103, DR103
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Re: Did I just win a boatload of Pihers?

Postby neikeel » Wed Apr 21, 2010 1:31 pm

shakti wrote:I'm trying to find out if these are carbon film or metal film. Any specific way to find out? I cut one in half, it has a white core with a hole in the middle, but I don't know how to identify it. I tried to find the thread with a photo of cross-sections of all the old resistor types used in Marshalls, but couldn't find it. Anyone have a link?

If they're CF, I am going to try them in some amps to see how I like them.


White with hollow core is typically carbon film.
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