Recent content by metropit

I'll suggest check point E voltage, the BIAS voltage seems not quite right. Check those silver shell caps and the resistors for BIAS voltage.

Non-fat mod R44 seesm to be 33k (instead of 3k3) from the photo, anyone can confirm this?

The original owner swap the Panasonic cap with Black Gate. However, those caps are for control circuits, I suspect that it may have very limited effect on tone.

Hi Joe, I got a HGAS as well, awesome device! A question, I believe the quality is mainly came from the 4X Jensen's transformer. But also noticed that the unity gain op-amp was just 2X LF353. I'm wondering did you ever give it a try to swap the LF353 to some other op-amps? If so, which one...

Hi Catthan, I own an LSC and an Express 5:50, here's my opinion for your reference: 1. Clean: In simple words, Express clean is excellent, but LSC's clean is incredible. From 1 to 10, worst to the best: Express: 8.5 Lonestar: 9.5 2. Blues: I think both Express and LSC are ok, but express...

IMHO, the Step 1 mode is quite dangerous. 1. Pin 1 on V1A which has at least 202V DC voltage, if you connect it directly with a pot and shunt it to the ground directly, the current will possibly damage the pot if you didn't take the pot wattage into consideration. 2. On Lonestar, they do have...

Each 12AX7 contains two triodes, say VxA and VxB, and each triode can be a stage of amplification. For Lonestar, stage 1 is V1B, and V1A is used for drive stage if engaged. Then the signal goes to next stage - V2B. On the next is an insertion of Reverb stage which is buffer by V4B (at reverb...