Tube Amp Archive

M Fowler wrote:Yup UL taps (screens) clip the bare ends, shrink wrap each wire and then larger shrink wrap over both and stow those wires away.

Thanks, that was the answer is was looking for.

And yes, not thinking ahead.

damned! it's already mounted on the chassis with the board under it. It's a lot of work to remove it. Can't remember having seen that. There was a piece of paper that came with it. Lost it.

Think Ampgeek is right:

https://www.edcorusa.com/content/images ... ms_10k.png

Please help! I´m halfway through the build and i have a problem with the Edcor OT.

The schematic shows 3 connections at the OT: A B+ and pin 7 of both sets output tubes.

The transformer has 5 cables (1 B+, 2x screen en 2x plate). Can't figure out what to do with 5 wires and 3 connections

can anybody tell me what i should change in the powersupply? (R31 to R34) for a 2x EL84?

found some very affordable tubes, with good measurements (tested, just before i bought).

Don't know if they are the right choice for a TW LP

2 Haltron NOS El84
1 Mullard ECC83 (12ax7/ecc83 Gt. Brittain, IEC Mullard 1022-852)
2 Brimar Rochester CV4004 ECC83

lego4040 wrote:Keeps costs down, boards funky smelling? Or nice aroma?

Doesn't smell at all. And it's cheap, but if you want to keep costs down, than better not build amps at all.

Yes, together with a friend i build 2 headshells en 2 matching oversized 1x12" cabs in the same style. The are made of old dutch pine cheeseplanks. They used them to store cheese to let them age.

Thanks for the advice.

This is the set transformers i'll try to build the trainwreck with.

I'm happy (and broke now )

[IMG768]http://i60.tinypic.com/oppi5z.jpg[/img]

[IMG768]http://i57.tinypic.com/iekw7p.jpg[/img]

I've used this Edcor 275-0-275/150mA several times now with great success, and it's much more reasonably-priced than the Hammond. You just have to be patient, because it usually takes about a month to get a tranny from Edcor. https://edcorusa.com/xpwr163 here in the netherlands it is pretty difficu...

Okay RJ, you used a 270v transformer. What was yhour B+? I'm finding the 234 v AC in the schematic, here at this forum a little bit low, since everybody is saying you should use 260 -280 trannys. what did Ken Fisher had for B+ in his Liverpool moddels? I'm realy confussed about the schamatic and tha...

I've read RJ's topic on the 2 outputtube Liverpool, and as far as i remember he used something like 260 - 280v AC sec.

You Guys helped me out with finding a good OT (Edcor) But now i'm stil in doubt about a suitable Power Transformer. I have read a lot of topic about the Liverpool en have read that the PT should have a secundairy between 260 and 280 volts. I've downloaded the schematic (normal Liverpool 30 with 4 EL...

Tabula Rasa, if you really want a 10k in Europe then maybe Don Audio in Spain is your answer. He seems to have the Edcor CXPP30-MS-10k in stock right now. That one is rated 30w and is well inside your budget. Best, tony Overtone: Thanks!!!! That was a good advice. Now i'll try to find the right PT....

Thats perfect. Great!