Tube Amp Archive

Thank you Colossal... this was a fun build and I learned a lot.

I hope to improve my cabinet work and try some box or dovetail joints on my next amplifier but I am not very savvy when it comes to wood working. I grabbed a router and I am going to practice some cabinet skills!

Soooo after lighting this thing up I end up with these numbers for my voltages... I used the 330-0-330 secondary taps and my plate voltage is 334 volts. I have an 18.5 volt drop across the 488 ohm cathode resistor. The numbers point to about 11.97 watts out of the 12 watt design of the 6V6GT tube. I...

It took a little time to make the cabinet but I can say I am pleased with how it turned out.

The second tone mod I wanted was a feature that came from an old amp build I did in the 90's. It is a "Brilliance" function that adds a treble boost to the sound but it isn't a traditional bright capacitor that loses effectiveness as the volume is increased. It is a bypass capacitor on the cathode s...

The colors I decided on are nice I think and kind of vintage. The Burgundy I liked was called either "Buggy Whip" or also "Wine Taurus". The cream color I ordered is "Ivory Bronco". A great looking combo I must say! Here is the Wine and the speaker grill I chose... "Fender Wheat" Wheat and Wine.jpg

I am not a woodworker so this part of the build was very intimidating. THE CABINET. I was going to just order one all done but first off they were a lil pricey at $275 or so... but secondly they all had like a 6 week lead time. Time for Cheapo Depot. I think I grabbed enough pine planks and Baltic B...

For a speaker I soooo was going to grab a Rock n Roll Celestion as that name screams to me as quality but this amplifier is refined and old school remember hahaaa. I searched the 'Bay and found a set of 4 old Fender blue frame Alnico speakers from an old Super amp from early 90's. I researched them ...

The chassis I went with was also from Hoffman Amplifiers, the traditional 5F2-A chrome chassis. Shes a real looker! Here she is with the transformers I used. The power transformer is a Weber W022772 which was a great price and offer us a 300-0-300 or 330-0-330 secondary voltage and also a 120 or 125...

Hi all... First a quick thank you for being a great source of valuable info to me for the last few years! I have thrown out a few questions here and there about old builds that had been failures and about ideas I have wanted to try. It is always nice to be a member of a community that is like minded...

Right on, looks great! I am in the early stages of a 5F2-A build for my personal practice amp. I am thrilled to see how well this turned out! I am strongly considering a speaker choice of the Jupiter (of all places... I used their red coupling caps they are Astron clones) 10SC (ceramic Small Coil). ...

Not a Celestion but wow the reviews are great and consistent... of all places the Jupiter Condensors models (built to spec by WGS). I will probably get their 10" small ceramic model (10SC) for my 1958 Princeton practice amp build I'm working on. The ceramic model is merely $59.00 and the reviews are...

ohh heck that is an old mica. OK cool thanks for the pic! Is that what you guys woulda used if this was your project?

Yep.. I am either using a Jupiter .005 or I have a few leftover mustard .0047's for the pot to ground Astron. I'm curious about the ceramic to wiper and options in there. A lot of folks arnt liking the usual rule of silver mica in everything tone related and that's where Id like some input. I'm not ...

Hi Folks... I have a nice (so far haha) project going for myself.. a practice amp flavored after the 1958-1959ish Fender Princeton tweed. A simple circuit yet that's where I am a lil lost (low part count = more attention to part quality) . So little parts in the tone control... merely 2 capacitors.....

Hi rooster! From what I remember with the last attempt at this build that 'Mid" was a tuned tone control that seemed to boost/cut the frequencies at about 630hz. It did affect the tones but I wasn't too sure on my craftsmanship back then. As soon as I finish my 5F1 I'm going to attempt this modded P...