The Amp Garage

Everytime I try to edit my post, the site is posting a new reply quoting the post?!?

Update: just finished the refurb of the T60. Appears to be an October or November '64 as it has the link added (late Sept. '64) but still has R14 = 330k (changed to 82k in mid Dec. '64). Good amount of work put in and it's not the most desirable of JMIs but if it means keeping it out of the dumpster...

Thanks R.G. as usual. Found this post of yours from 13 years ago on another forum. Am planning to use the MJ15025s and insert an 18 ohm resistor coming off the driver transformer secondaries and into the 1k/base junction. Am I understanding that right? FWIW, here is the stud mount zener with its bro...

Why not use a modern 220 type negative regulator for that 3 transistor section of the preamp. Ah, never thought about that. You thinking like a 7912 or 7915? I put silicon type T03 outputs in my 66 reverb twin and found that the higher idle current needed only served to slightly reduce the amps RMS...

Hi all, Recently acquired a 1964 Vox T60 chassis that I feared was headed for the scrap bin. Get the feeling the chassis was unloved for the last 30+ years as it sat on a shelf and was very grimey and dirty. I get it; not a very reliable amp and thus probably not very desirable. Also not very powerf...

I am offering for sale an Orange/MATAMP ORST amp "kit" that I purchased from Neil Keeling in 2022. The ORST is a very early Orange/MATAMP head predating the typical OR120 or OR80 Orange amps. A number of years back, Neil had made a few clones of this amp and had one last set of parts available. You ...

If you want to spend a bunch of money and probably get a good sounding Astron style cap. http://www.tweeddeluxe.com/recpro-capacitors.cfm CW WTF?!? $45 for a 0.1 cap? https://i.imgur.com/JsBNaVW.png $44 for a label stuck around some other manufacturer's cap? The seller's going to be SPEEDing from h...

OK. Do you mean the second resistor switched in parallel?

I would simply add a resistor (or make it a resistor and a trim pot) to ground from the output of the bias filter network with a switch between the resistor and ground. That way the output tubes never see a condition with no bias. If you were really clever, you could make it so the hotter bias is a...

Anyone can buy (or steal) the rights to a brand name, and start producing product with the branding and look of the original (in this case being produced by "Shin-ei, LLC" perhaps another purchased brand name, lol.) Call me cynical, but I propose that if they look really good it'd be hard to object...

I would simply add a resistor (or make it a resistor and a trim pot) to ground from the output of the bias filter network with a switch between the resistor and ground. That way the output tubes never see a condition with no bias. If you were really clever, you could make it so the hotter bias is a...

Jupiter caps won’t like this. They have a good product. Well, sure. How could they? How many "Jupiter" branded caps do you see in vintage Fenders? I know of a Bandmaster 6G7a that has some of them in it. :mrgreen: Ha! I should have qualified my original question with "...from the factory..."

Mark wrote: ↑Mon Feb 12, 2024 3:15 pm Jupiter caps won’t like this. They have a good product.

Well, sure. How could they? How many "Jupiter" branded caps do you see in vintage Fenders?

Hi all, I'm semi-interested in a 6G16 brown Vibroverb build. I've done a Super Reverb AB763 build about a dozen or so years ago so not a complete stranger to Fender builds. But, I am learning that one of the big issues with bias-vary trem for the 6L6 based amps (e.g., 6G16, 6G11/A, etc.) is that the...

WhopperPlate wrote: ↑Sat Feb 10, 2024 6:28 pm I want these to sound so good

"Parts is parts"?

IOW, you're buying these for the aesthetics. IMO. Which is not a terrible thing.