My new All tube Practice amp

[dmt]

I picked this baby up on evilbay for about 20$ and it has tone to spare! I removed the probe that came with it and replaced it with a 1/4 in jack. The hole was just the right size.

It has an old EL-MENCO 12AX7A tube for gain and a 12CA5 tube for the output and a Magic-Eye tube to boot.

A good clean tone and a KILLER Overdrive when cranked. Throw a boost infront and you are in heaven. Based on the schematic it should be able to drive an external speaker.

 

[MusicManJP6]

That's intriguing! What's it sound like?!

 

[eldi]

Looks like a metal amp! :lol:

 

[darren]

Wow... what a unique find! Very cool!

 

[dmt]

I'll post some clips this afternoon.

The mod was real simple.

Most of the first few clips are in this sequence: Bridge Pickup, Bridge Pickup w/ Coil tap, Neck Pickup, Neck Pickup w/ Coil tap. You can hear the difference somewhat.

I used an Audix i5 to record the samples, about 2-3 inches away from the speaker.

Clean: (Volume on 20)
http://media.putfile.com/Heathkit-IT-12-amp-Clean

Dirty (Volume on 40)
http://media.putfile.com/Heathkit-IT-12-amp-Dirty

Overdrive (Volume on 100)
http://media.putfile.com/Heathkit-IT-12-amp-Od

Overdrive with Boost (Volume on 100 +7db boost)
http://media.putfile.com/Heathkit-IT-12-amp-Od-Boost

Distortion: (Volume 40 + Ibanez SM9)
http://media.putfile.com/Heathkit-IT-12-amp-w-Fuzz-Factory
http://media.putfile.com/Heathkit-IT-12-amp-w-Fuzz-Factory-AIC

Fuzz Factory Randomness
http://media.putfile.com/Heathkit-IT-12-amp-w-Fuzz-Factory-random-Jam

I used some other effects on and off with the FF. Ibanez FL9, AD202 Delay, Whammy, Phaser, Wah in there someplace. I basically ran it through my pedalboard for the fun of it.

Guitar used was a 1980 Gibson 335-S Silverburst Solidbody.

 

[dirtyguitar]

now THIS is bad assed!

 

[crunch berries]

interesting find

 

[lerxst88]

do you have the schematic for it?

 

[dmt]

Actually I do. I have the manual for it which tells you how to build it. This was originally a kit that you put together.

Here is where i got it from:
http://www.geocities.com/jaschotter/heathkitit12.html

You will need a dejavu reader:
http://djvu.org/resources/