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I feel your pain. That would be enough to make me quit.

Do the preamp tubes look like this? Mesa used these from the late 80's to the end of the 90's. They are the Chinese Military grade 6N4-J Beijing Square Foil Getter tubes, 7025/12AX7. I still have these along with some from Doug's tubes. Mesa on the left, Ruby on the right. Same tubes. Mesa...

Do you have any sources to prove this? I highly doubt that EU placed restrictions on products containing Germanium. If they did, there would be bans on cell phones, computers, TVs or just about any electronic devices. If there were substitute on that rare earth mineral, they would be using it...

I doubt there will be any more Varactors made, that is a given. Germanium is a common element used in LEDs, transistors, Silicon chips (logic and CPUs like midi controllers and such). Gallium Arsenide probably should be banned but that is also a common element in all of the above. Not sure if...

Have a question on your Recto's, are you using the Mesa 12AX7 (JJ ECC83s) or do you still have any of the Chinese tubes? Not familiar with the RoV or the F100. What preamp tubes are in them? Also, I believe the RoV was spawn of the Rev F Recto solo head. I only got into the Recto game until...

I poked around the amp to see what was inside as the schematics have not been leaked out yet. Since it was a new amp, I had no clue if there were any cathode follower circuits. Had I taken notice to the manual, V2AB stated as tone stack driver, well that was obvious. That was what I went...

👮‍♂️ Nothing to see here, Chug along, keep moving, Chug along. 👮‍♂️ Just watched a history on the 2CH rectifier from its roots to the Rev G. Sure they had differences and such but one thing in common, they all used Chinese 7025 preamp tubes (unobtanium Beijing Square Foil Getter 6N4-J that...

Why can't they use Germanium when everyone else can? China placed a ban on export of Gallium and Germanium based products, does not mean it is a ban worldwide. Those two elements are primary for silicon chips. It is just BS. Other countries can produce products with those elements. China has...

7 string anybody? The BAD does not disappoint with the 7. First amp with the Rectifier branding that I can run a 7 (Baritone scale or standard scale).

I generally boost the bass control up just enough before it gets woofy. Also increase the midrange and drop the treble down a bit. Do what you want with the gain control. Sort of the same trick I use with the RA100 but they are unrelated amps in all respects. You could try the 5BGEQ on the...

curious how this project will turn out for you. Sure, EVM12L is great in an open back cab. So is the Redback BTW. What I have found with the 412 cab, the EVM12L is a total beast in a sealed closed back cab too. That oversized Recto slant front cab did require some beefing up inside with the...

Lots of good points above. I vote for the hard bypass test first. if that works, it could be half of the V5 tube is bad. You could also leave the amp with the FX loop on, set all of the mini toggles for each channel to turn on the FX, those are also on the back panel just below the reverb...

Interesting, did not know the combo has the long 2 spring tank. The RA100 head has that tank as well. Compared to the TC100 or TC50 I can hear a slight difference but not by much. As for the 12AT7, you will not get the same level of effect. More or less due to the recovery stage than the...

The Reverb circuit has a few op-amp buffered before it is sent to the tube driver circuit. The recovery stage which is also a tube circuit will then inject the output signal into the FX return gain stage. It actually runs in parallel to the FX loop. The tank is also a short 3 spring so it...

Running the 6L6 does open up the door to other possible character. STR440 (if you have them), STR441, STR443, STR445, STR448. Greens and greys may have the early distortion characteristics similar to the STR447 which usually seem to run the green, grey and blue colors. Sure, different tube...

I believe what Mesa was trying to indicate when running the channel master above a specific setting, it will not do anything to the FX loop circuit. The FX loop level is on the high side to start with. Depending on channel used, the clean channel can easily push out +8dBu but you need to set...

Awesome, I will have to try some TAD 6V6 tubes. Will have to check them out and see who makes them based on the appearance. The JJ 6V6 is not all that great as they tend to get noisy after a few thermal cycles. Noising being the tube sing where they vibrate at the same frequency as the notes...

Just curious if you made the choice to get the amp. I ran out of GAS after getting the second Mark VII. Having two sort of depleted my hobby funds. Actually I just do not like spending money unless it is worth it. It was, but ouch on the purchase. I did not have much interest in the EL84...

Pins are not supposed to be bent. It may have been caused by its removal or how it was inserted. Best to verify by feel that the pins are aligned before pressing the tube into place. If they are not straight, it becomes more difficult to get the tube installed. Never force a tube into the...

I have compared the EL34 and STR445 in the BAD side by side as I have two BAD 100. Those almost sound the same but need to puss the channel volume up with the 6L6 tube to be at the same level as the EL34. STR440 was a bit thin sounding. STR445 was aggressive as were the STR448 (grey color...