Search found 368 matches
- Sat Jul 23, 2022 2:57 pm
- Forum: Technical Discussion
- Topic: Ampeg Bass Amps?
- Replies: 3
- Views: 537
Ampeg Bass Amps?
Hey All, We have both an SVT Classic and V-4B heads and love them both. They can both sound nearly identical, at low to medium volumes, when using the same mid center frequency settings. The down side here is that we prefer 450hz mid center of the #2 position of the SVT Classic, over either the 220h...
- Mon Feb 07, 2022 5:39 am
- Forum: Fender Discussion
- Topic: Fender AB1263 Tremolux schematic needed
- Replies: 31
- Views: 3412
Re: Fender AB1263 Tremolux schematic needed
Matthews Guitars wrote: ↑Mon Feb 07, 2022 4:25 am The status of the amp as of this evening: Excuse the mess, I get it running first, tidy it up later.
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You do make the rounds of all the cool guy hangouts, dontcha!
Nice To Se Ya,
Gene
- Mon Feb 07, 2022 5:26 am
- Forum: Technical Discussion
- Topic: VOX AC10-Twin Regrets
- Replies: 10
- Views: 1338
- Mon Feb 07, 2022 12:40 am
- Forum: Fender Discussion
- Topic: Incestuous Marriage?
- Replies: 22
- Views: 6384
Re: Incestuous Marriage?
To get some preamp overdrive with the master volume, move it to between the 12AX7 common cathode gain stage and the cathodyne. An extra coupling cap, eg 0.022uF, will be necessary. I’m pleased it’s working out nicely for you, especially with the 0V common wire and its a single connection to the cha...
- Sun Feb 06, 2022 7:37 pm
- Forum: Fender Discussion
- Topic: Incestuous Marriage?
- Replies: 22
- Views: 6384
Re: Incestuous Marriage?
Well the choke may well be responsible for the silence of the amp, too. Keep Tweedin' Gene... 8) As for the choke, I'm not sure or not if it is responsible for the nice, springy, bouncy feel and response, but the touch sensitivity is pretty amazing. Even guitars with standard wiring (no treble blee...
- Sun Feb 06, 2022 2:24 am
- Forum: Fender Discussion
- Topic: Incestuous Marriage?
- Replies: 22
- Views: 6384
Re: Incestuous Marriage?
That's interesting and the outcome looks pretty clean for what's something of a prototype... 8) Some comments about the addition of a choke: how worthy this is, meaning did you make some before/after comparison? Thanks for the compliment! I was going to do a with/without comparison, but it sounds s...
- Fri Feb 04, 2022 7:16 am
- Forum: Fender Discussion
- Topic: Incestuous Marriage?
- Replies: 22
- Views: 6384
Re: Incestuous Marriage?
And yeah, I know the face and rear plates don't match the circuit! P-Touch labels have been grudgingly applied for now!
Gene
Gene
- Fri Feb 04, 2022 6:03 am
- Forum: Fender Discussion
- Topic: Incestuous Marriage?
- Replies: 22
- Views: 6384
Re: Incestuous Marriage?
Well folks, I finally built this amp and it is indeed fabulous in many ways! A lot of what I surmised has come to fruition, although the surprise is that there is not a lick of audible distortion in the preamp section. The power section however, gives glorious overdrive/distortion, with nice clear d...
- Sat Jan 15, 2022 8:25 pm
- Forum: Marshall Discussion
- Topic: output section for small venues - JCM800
- Replies: 12
- Views: 2549
Re: output section for small venues - JCM800
Phil D. You put that quite eloquently! I am in much the same boat, along with many others that want "THAT BIG BOY" sound, response and feel at "Little Boy" volume levels! It can be quite the balancing act, especially given that most commercially available amps "pare down" the features as they decrea...
- Tue Jan 11, 2022 2:20 am
- Forum: Marshall Discussion
- Topic: output section for small venues - JCM800
- Replies: 12
- Views: 2549
Re: output section for small venues - JCM800
Hey, thanks for all your great feedback and replies. It sounds like the attenuator over at the Marshall forum is a well working piece of gear to build. I would even consider using EL34's if its that good. (I did include pre and post master volumes on the plexi and like the options). You'd be surpri...
- Sat Jan 08, 2022 6:12 pm
- Forum: Marshall Discussion
- Topic: Cathode Bias JTM45/KT66?
- Replies: 4
- Views: 1515
Re: Cathode Bias JTM45/KT66?
My sincerest thanks to all for humoring me on this trip down a somewhat less traveled rabbit hole. Please understand that, as I've mentioned here before, I am by no means a true technician or amp designer. I do however understand safety protocols and have the skills to be a good amp "assembler," onc...
- Sat Jan 08, 2022 7:54 am
- Forum: Marshall Discussion
- Topic: Cathode Bias JTM45/KT66?
- Replies: 4
- Views: 1515
Cathode Bias JTM45/KT66?
What would we think of a generally stock JTM45, with KT66s and the twist of cathode bias? And what what need to be done/added to also support the use of 6V6s. Both tube models seem fairly happy with similar B+ voltages and both seem to be well suited for an 8K primary output transformer. Just Thinki...
- Mon Jan 03, 2022 7:30 pm
- Forum: Marshall Discussion
- Topic: output section for small venues - JCM800
- Replies: 12
- Views: 2549
Re: output section for small venues - JCM800
Hi there. Has anyone had good luck building and using a low watt Marshall JCM800 for small clubs? I build a Marshall Plexi with 6V6 output tubes BUT, while having great tone, the amp can still get pretty loud. So, I imagine that although having more gain/distortion in the preamp than a Plexi, a JCM...
- Thu Nov 25, 2021 8:27 am
- Forum: Marshall Discussion
- Topic: Can We Discuss Major Pigs?
- Replies: 24
- Views: 5809
Re: Can We Discuss Major Pigs?
Ya know, Looking at the schematics for these Pigs and Piglet, it strikes me that the two channels of the preamp look an awful lot like a crossover! Is there anyone here who knows how to determine the crossover frequency and the dbs per octave slope, as well as whether or not there is any overlap bet...
- Sun Nov 07, 2021 3:25 am
- Forum: Marshall Discussion
- Topic: Can We Discuss Major Pigs?
- Replies: 24
- Views: 5809
Re: Can We Discuss Major Pigs?
Hey folks. It dawned on me that I've never thanked all you great folks for your spirited and informative contributions to this quest for knowledge of these amps. Unless and/or until I tackle building one of these, most of my my questions have been well answered. This thread was truly inspirational f...