robrob's Recent Activity

  1. robrob replied to the thread Bassman Micro "Artificial 6.3v Center Tap Only if needed".

    If your power transformer has a 6.3v center tap then I recommend you use it. If it doesn't then add an artificial center tap.

    Oct 20, 2020 at 2:09 PM
  2. robrob replied to the thread Help needed reducing heater voltage.

    chas beat me to it.

    Oct 20, 2020 at 2:07 PM
  3. robrob liked andrewRneumann's post in the thread Master Volume within Feedback Loop.

    What I didn’t like about the MV within NFB set up: 1. NFB all but disappeared at anything less than max MV. 2. Changing the MV changed...

    Oct 20, 2020 at 2:00 PM
  4. robrob replied to the thread When a Princeton grows....

    Congrats on getting it up and running. I'm not a fan of the Paul C mod (fixed bias phase inverter). Paul said he was trying for a more...

    Oct 18, 2020 at 9:10 AM
  5. robrob liked D'tar's post in the thread When a Princeton grows....

    They all sound good IMO..... Im liking the blackvibe more and more every time I hear one!!!

    Oct 18, 2020 at 9:05 AM
  6. robrob liked EmWeAh's post in the thread When a Princeton grows....

    Finished up wiring the power cord and did some last touch ups... haven't tuned in the news this afternoon. Unfortunately, I did and read...

    Oct 18, 2020 at 8:36 AM
  7. robrob liked D'tar's post in the thread When a Princeton grows....

    I was looking for some wiring faults. Thanks for clearing that up so I can stop looking in my spare time:)! FWIW.... That resistor could...

    Oct 18, 2020 at 8:35 AM
  8. robrob liked EmWeAh's post in the thread When a Princeton grows....

    @D'tar yep, Rob's Blackvibe is an exceptional good sounding circut, thanks again for sharing @robrob. While the Kingston has a bit more...

    Oct 18, 2020 at 8:30 AM
  9. robrob replied to the thread SLO-Nakid.

    I didn't notice it until I watched it a second time. I believe the builder used his phone for the demo.

    Oct 18, 2020 at 8:29 AM
  10. robrob liked augustusd's post in the thread Champ Micro build checkout help.

    Thanks for that insight. That makes sense and I will reroute both.

    Oct 18, 2020 at 8:22 AM
  11. robrob liked GoldDeluxe5E3's post in the thread Robinette's 5e3 Mods.

    Thanks Rob. Not just for this reply, but for all the work you've done on behalf of people waking up to the wonders of home-grown...

    Oct 18, 2020 at 8:13 AM
  12. robrob liked 24 track's post in the thread My take on RobRob’s “BuckMinister” bucking transformer.

    too true that!

    Oct 18, 2020 at 8:13 AM
  13. robrob liked GoKart Mozart's post in the thread My take on RobRob’s “BuckMinister” bucking transformer.

    Thanks but @robrob (as usual) deserves the credit here since I got the idea from his treasure trove of info.

    Oct 18, 2020 at 8:13 AM
  14. robrob liked Twangbo's post in the thread Champ Micro build checkout help.

    Thanks Rob and thanks for your amazing site- I've spent quite a bit of time there studying your content- I always seem to lose my place...

    Oct 17, 2020 at 8:01 AM
  15. robrob replied to the thread Help needed reducing heater voltage.

    From my website: Desired voltage drop / amps = resistor ohms .5 volt drop / 2.7 amps = 0.19 ohm dropping resistor...

    Oct 17, 2020 at 7:58 AM