Black Heart wrote:I too purchased on of the PCBs from Terry's site, not knowing that the documentation was complete.
There are two mods I would like to make.
1) VVR mounted in the chassis and turned on and off with a foot switch
2) I have a spring reverb from my donor amp that I would like to incorprate, again turning on and off with a foot switch.
I am a complete newb when it comes to amp building - this is my first amp. But I am going to use the information that I see posted on here to get it wired up (I purchased pretty much 100% per Terry's documentation, so I only have a couple of new parts to buy).
Any help on my mods would be appreciated!
cheers.
rm
It's not a great idea to go nuts on your first build with additions or mods. You should review the documents for the build and take a look at rock_mumbles docs and updated schematic before you start the build.
After you've done all that, you can build and test the amp. Once it's complete, tested, and working...then you can start thinking about mods and stuff. One at a time! I wouldn't do both mods at once, do one, test it, then move on to the next.
IMHO a VVR with the pcb Lite IIb isn't all that necessary. With a master volume knob the Lite IIb gets great tones at a variety of volume levels. You can decide if there's a real benefit to the VVR by turning up the master and see if you really like that overdrive more than just the preamp knob. I use
In regards to the reverb... a left over reverb tank may be more trouble than it's worth. Do you know what the impedance is in and out? To add a reverb requires adding an entire reverb circuit (caps, resistors, an additional board), a reverb transformer, a reverb tank, knob(s), and deciding where to implement it into the amp circuit. I've done the "one tube reverb" thing with a couple different 18 watt variants, but you absolutely need to balance the reverb transformer with the tank, and you will need to add an additional tube socket to support the reverb.
You might also find a reverb pedal that sounds great. I built a few from GGG's kit that sounded great. Pedals are fun to build too.
