The Amp Garage

You have a nice collection of carbon comp resistors there and though it looks like the boards are the real problem here was an interesting commentary on reconditioning the carbon resistors from Hi Fi Collective: Being made of organic material, they do have the tendency to absorb water from the atmos...

Everyone, I thought I could handle selling stuff but that proved impossible with my health. My heart has decreased Left Ventricle ejection fraction at 36% so not getting enough air, of course medication increased so breathing a lot better now. Next is to tackle my blood sugar levels so I don't slee...

I admit I am curious... Are you even going to try to resurrect this beast? How do you even begin to evaluate whether an amp like this is worth saving? And to what lengths you might go to preserve the legacy value of the original? Yes, I want to save the amp, I don’t know what it will take to get it...

I admit I am curious... Are you even going to try to resurrect this beast?

How do you even begin to evaluate whether an amp like this is worth saving? And to what lengths you might go to preserve the legacy value of the original?

Someone appears to have hijacked your login bepone - maybe change passwords.

Living in Europe, i do a lot of business with Tube Town and I've always had a good experience with them. They are usually supportive as long as you don't hit them with too many sophisticated problems. English probably isn't their first language. If you order from them, do an inventory of the kit par...

Just curious. Does anyone recognise the make of this resistor? It's likely it's the cathodyne bias resistor: Rb = 1.5k.

I noticed a shielded cable, white, so possibly teflon, passing under the board from the volume pot to the V2a grid. It's grounded on the side of the Normal pot.

Richard McDonald talked about this amp, and his experience with Dumble on Guitarwank 253.. It's a really cool listen: https://open.spotify.com/episode/4ZrxGkNVI078ogbQ6u9ccx?si=0e85bde680664706 Thank you. It was nice to hear of the real legacy of his friendship with McDonald. Dumble lives through h...

Okay, that didn't take long. The schematic is done. First draft anyway. If you see any errors or think it could be improved, please let me know.

Now! Who's going to bite the bullet and build it?

https://ampgarage.com/forum/viewtopic.php?f=5&t=37167

First mentioned, with photos and descriptive text: https://ampgarage.com/forum/viewtopic.php?f=4&t=37151


With circuit clarification from Charlie Wilson. Thanks Charlie!

Please comment if you see any errors.

Dr d wrote: ↑Wed Apr 17, 2024 3:29 pm So not a particularly exciting amp then?!!!

Didn't say that

Probably should clarify what is going on with the trimmer. B+ rail comes from filter to bottom terminal of 10k trimmer at the 100k and continues on to V1 off the bottom terminal. The 56k is on the wiper. I don’t know if the wiper and top terminal are jumpered but either way a variable resistance 56...

Just checked over on Rob Robinette's site and the Edge has .022uF coupling caps to the power tubes, plus 470 Ohm screen grids. I think this amp has them as well.

Colossal wrote: ↑Tue Apr 16, 2024 11:22 am This amp looks like it may have started life as an Edge signature 5E3, but that's just a guess

I thought the Edge Deluxe came out later, around 2016?