Tybone wrote:I have an Opal and have been looking for a Schematic so I can plot out some mods. The HRM by pass is a good feature. Somehow the amp sounds good in both mods with just a little more grind and compression in HRM mode.
Gutshots anyone?
You have an Opal and you are looking for the schematic and gutshots? If I wanted those, you would be the guy to ask.
So, I'm asking. Please give us gut shots and/or trace out the schematic.
VK, that's the difference between TGP and TAG...lol
I have a 50watt TS-1 that I love and I've taken some photos of the inside. Are people looking for GSs of the Opal or TS-1? Here are a few innerd pics of my TS-1
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Last edited by Mikeroesoft on Fri Nov 14, 2014 3:06 pm, edited 1 time in total.
fenderbender4 wrote:I had a few questions about the Opal and other two rocks. Is there a schematic for the Opal? Is this the only model that is both HRM and bypasses for non-HRM? How difficult would it be to mod the Opal schematic for 100 watts?
In a related note, is there circuit info for the TS-1? Anyone been inside of one? I know it's supposed to be related to Robben Ford's dumbles but don't know if it's meant to be a direct clone of #102, or something else.
Thanks!
I had an Opal many moons ago, and traced it at some point. Let me check and see if I still have the schematic. In the mean time, the HRM bypass feature is a pretty nice trick: lift the ground from the HRM tone stack, and connect a paralleled 100k|330pf resistor and cap to ground from the first terminal of the OD master volume pot. The circuit is pretty close to known HRM examples, but with lower plates on the clean side and a few other little things, iirc. Cool amp.
Cheers!
chris
Update: Added attachment with my notes on the Opal. There is some duplication, and some unreadable values (sorry), but you should be able to piece it together. No PS, unfortunately.
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Last edited by chris_sanford on Tue Nov 25, 2014 6:19 pm, edited 3 times in total.
Mikeroesoft wrote:Couple more...of the TS-1. Can anyone tell me what style of ODS it is, and if it really as close to #102 as some say it is.
I could take a look if you have better images og the main board and also close ups showing theV1 and V2 tube base's, close ups of the back of the front panel would also help showing the switches and pots.
