robrob
Last Activity:
Sep 19, 2021 at 4:28 PM
Joined:
Dec 29, 2012
Posts:
8,404
Likes Received:
4,246
Active Classifieds:
0
Gender:
Male
Home Page:
Location:
United States
Occupation:
Airline Pilot

robrob

Poster Extraordinaire, Male, from United States

Ad Free Member
robrob was last seen:
Sep 19, 2021 at 4:28 PM
    1. Juan1
      Juan1
      Hello Robrob. I have a VHT Ultra Combo coming and wanted to Blackface the clean "channel" and add headroom, and Brownface-ish the gain channel. Do you have any thoughts on the following mods?

      1 Switch speaker to a WGS G12C.
      2 BF the tone stack. Maybe add pots?
      3 Add switchable NFB like you have on the Princeton on your website.
      4 Add a raw switch, but put it on a pot.
      5 Bias for a 6l6.

      Thanks!
    2. jackal
      jackal
      Sorry, I was under the impression that you had close contacts with the admins.
      1. robrob
        robrob
        No, I don't even know who they are.
        Feb 24, 2021
    3. jackal
      jackal
      Rob-------maybe you can help me. For the last couple of weeks, I cannot post on TDPRI. Computer works fine on all other sites,Won't allow a new membership it says that I didn't respond to the CATCHA, but it never show up on the screen. I have tried several approaches to contacting admin, but it kicks back every time. I would appreciate any help you can give me. Thanks----jackal.
      1. robrob
        robrob
        Sorry, I'm not an admin and I don't know any admins.
        Feb 22, 2021
    4. dpetrzelka
      dpetrzelka
      Rob, First, a huge thank you for your web pages on tube amps.

      I'm starting a new project where I want to build a tube buffer for guitar that allows me to split the signal into two amps (buffer and Y-box in one). I've been reading about cathode followers, thinking 12au7 based, and wondering if you have written anything about Buffer circuits?

      Any tips on where I might ready more?
    5. MrCoolGuy
      MrCoolGuy
      Rob! Your website helped SO MUCH in building my 5f6a. Thank you so much. That was a while ago... Now I am an amp tech, fixing local players amps, pedals, etc... Thanks again!
      1. robrob likes this.
    6. Romartin
      Romartin
      Hey rob, I read your webpage for hours last night, and it’s awesome! We have a lot in common. I appreciate your professionalism and passion for your hobbies. I’m a physician by trade, but like you, I love cars, guitars and now building a tube amp! Thank you for taking the time to post on this forum, and the incredible webpage you’ve created.
      1. robrob likes this.
    7. Slydeco
      Slydeco
      Sorry Rob I should have been more specific,
      I was thinking in terms of using the Bandmaster OT to reduce headroom and make the Bassman overdrive at a lower volume.
      I wasn't worried about Physical space,
      Thanks Mike
      1. robrob
        robrob
        Then yes, you could use the BM OT. The amp wouldn't overdrive earlier but you would get more high volume compression and lose a little low end definition.
        May 31, 2017
    8. Slydeco
      Slydeco
      Rob can you swap a OT from a Tweed Bandmaster into a Tweed Bassman ?
      Thanks Mike.
      1. robrob
        robrob
        I'm sorry, I don't know the answer to that. You may be able to get the chassis hole dimensions from Classictone's website.
        May 30, 2017
    9. Jason5e3build
      Jason5e3build
      Hey rob if not to busy think you could check my board out
  • Loading...
  • Loading...
  • Loading...
  • About

    Gender:
    Male
    Home Page:
    https://robrobinette.com/Amp_Stuff.htm
    Location:
    United States
    Occupation:
    Airline Pilot
    Your amps and other gear:
    Fender Lone Star Strat
    Heavily modified Fender Modern Player Stratocaster
    Passionate about tube amplifiers, cars and motorcycles.

    Signature

    RobRobinette

    Don't confuse distortion with noise.