Lowerleftcoast's Recent Activity

  1. Lowerleftcoast replied to the thread Questions about Ampeg Reverberocket R-12-R reverb.

    I should mention the phase of the cathode signal is 180 degrees off. Confused yet?:confused:

    Dec 4, 2020 at 9:54 PM
  2. Lowerleftcoast replied to the thread Questions about Ampeg Reverberocket R-12-R reverb.

    A Phase Inverter works in a similar manner. The signal travels to the other side through the cathode. A Cathode Follower works in a...

    Dec 4, 2020 at 9:36 PM
  3. Lowerleftcoast replied to the thread Questions about Ampeg Reverberocket R-12-R reverb.

    There is always signal on the cathode when there is signal going through the tube. Draw a pink line on that R15 resistor path. The...

    Dec 4, 2020 at 9:29 PM
  4. Lowerleftcoast replied to the thread Questions about Ampeg Reverberocket R-12-R reverb.

    Look at R15. Signal traveling through the cathode path.

    Dec 4, 2020 at 8:55 PM
  5. Lowerleftcoast replied to the thread MusicMan 212-65.

    Can you determine the hum frequency? 60Hz 120Hz 240Hz Can you get voltages? B+... (+ side of the caps you installed) Tube pins

    Dec 4, 2020 at 8:00 PM
  6. Lowerleftcoast replied to the thread Champ Micro buzz/hum.

    Good to hear! Let us know what speaker you are using and how loud your Champ Micro is.

    Dec 4, 2020 at 7:42 PM
  7. Lowerleftcoast liked Wally's post in the thread Translate Amp Tech notes - '69 Twin worth it?.

    Neener, bouncing around is confusing...but maybe it is necessary. IF one wants to understand how to look at an amp and Know when it was...

    Dec 4, 2020 at 6:51 PM
  8. Lowerleftcoast liked Neener's post in the thread Translate Amp Tech notes - '69 Twin worth it?.

    Hmm i don’t know enough to know better. this is why I’m nervous to let anyone touch my amps. I appreciate all the insights That was...

    Dec 4, 2020 at 6:51 PM
  9. Lowerleftcoast liked Wally's post in the thread Translate Amp Tech notes - '69 Twin worth it?.

    Neener, the transformer codes and the serial number give me a way to place a strong bet that this amp was built in early 1969 as I noted...

    Dec 4, 2020 at 6:51 PM
  10. Lowerleftcoast replied to the thread Champ Micro buzz/hum.

    You can solder the 100ohm resistors right on the V2 tube socket for a neat installation. Doing so will also elevate the CT for quieter...

    Dec 4, 2020 at 5:59 PM
  11. Lowerleftcoast replied to the thread AC30/6 About to Begin.

    I think it is a contender. The Hammond 290NNX looks like it will fit and the voltage is closer than the 290NX. It has an extra 27V tap...

    Dec 4, 2020 at 3:59 PM
  12. Lowerleftcoast replied to the thread Champ 12 Upgrades.

    The Champ 12 distortion channel uses the gain produced by the V1 12AX7 preamp tube. Basically the way the clean channel works in the...

    Dec 4, 2020 at 1:35 PM
  13. Lowerleftcoast replied to the thread 5e3 PT and OT, but not a 5e3. Suggestions?.

    I've been considering a pentode V1 for a *Hammondator* donor Hammond organ future build.

    Dec 4, 2020 at 1:14 PM
  14. Lowerleftcoast liked Wally's post in the thread 5e3 PT and OT, but not a 5e3. Suggestions?.

    ..which is why it came to mind. Most everything one can see will look like something from the tweed territory in which the OP has...

    Dec 4, 2020 at 1:09 PM
  15. Lowerleftcoast liked Wally's post in the thread 5e3 PT and OT, but not a 5e3. Suggestions?.

    The single channel 6G3 Deluxe with no trem might be interesting. One other option would be to use a solid state rectifier and free up an...

    Dec 4, 2020 at 1:00 PM