Thanks for the input. Here's an update. But first, your questions answered.
No I haven't tested the cartridge. Next time I go over there I'll...
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Last edited by Alex R; 04-18-2024, 12:23 PM.
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Okeydoke, thanks to all for the input. When I pull the ef86 as suggested, the condition disappears and the sig gen output is linear at all audio frequencies....
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Really helpful, thank you! It's off the bench now, hopefully will get it back up tomorrow and try the valve removal idea, just didn't think of that. If it's...
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Juke amp frolics
I have this issue with an old jukebox amp - no schem available. (It's from a v rare Chantal Meteor juke, amp built by Calne Electronics, a Type A 12/58)....
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I'll never forget Enzo, though I never met him. He taught me so much, with such kindness and patience, and yes, joy!
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Thanks guys. Those pics are I think of a sx-70, the sx-90 and sx-100 are different.
All that's wrong with it is I took it apart and can't get...
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Pace SX-100 handpiece assembly
Hi all. Can anybody help me reassemble a Pace SX-100 sodr-x-tractor handpiece? There's an exploded diagram in the manual (link below) but however I reassemble...
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Ah yes thanks Helmholz a little learning lies ahead, I didn't recognise the circuit, except it seemed to resemble the old tweed octal Pro. Will look your...
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Ok I had another go. But wouldn't those two 1M resistors on the PI plates just cancel the signal?...
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So sad about Enzo. He taught me so much. Such an even temperament, his personality shone through his posts. Farewell mentor.
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Grrr. Thanks, I'm really bad at this! I should have another go, there being no other schematics about.
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...one of the bias trimmers is shown connected to a screen instead of a grid. That's not gonna be the last mistake in theae drawings, I'm no draughtsman as...
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Sola Sound SS100 schematics here
Herewith schematics I drew for the Sola Sound SS100. One came in, burned boards everywhere and a general basket case, and as there are no schems out there...
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Useful info here, which I used to solve the problem on this thread https://music-electronics-forum.com/...tenance-troubl...
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Oh sorry not to respond. This is a revision of the Williamson design. I was building a couple for a client, he supplied some lethal 50s DIY monoblocs with...
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Okeydokey I fixed it thanks to g1, with further help from this thread https://music-electronics-forum.com/...aintenance-tro...
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Ah thank you, that really helps, my theory isn't quite as good as it should be, now I have a line of enquiry to follow. I'll be back in the shop on monday...
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... alas I chucked the old zeners away after the first time I replaced them so I can't check that.
Oh I also removed the power amp in and headphone...
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Well friends this thing seemed to settle down in the end, but clearly I hadn't found the root problem because it came back to me after a few weeks having...
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Many thanks for the helpful replies. In answer - yes I too think they are 47R not 470R; no load was connected, and the bulb is 60 watt.
So it...
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Deluxe 112 oscillates
Hi all, not been in here for ages but this one has stumped me. I tried to attach the service manual, hope it worked.
OK so this Fender Deluxe...
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