Butchered? | Fender Twin Reverb Reissue

Great video - I'm working on my own TR and have a question - is the heater fuse @ XF2 unnecessary? I see with the mod it is no longer in the circuit. I'm also assuming that the black/white heater wires from the board could be removed.

No. The computer designer who built it in the first place, messed it up.

Do the original versions of this Twin Reverb always have PCBs like this "reissue"? BTW I had a 100watt twin many years ago as my first "real" amp and when I had the volume on 2 all if the plates, dishes etc stored in a big antique dresser in the dining room next door would shake and rattle when you strummed a chord! Great clean sound though😁

"Nashville beer bike bridezilla things" lmao.

Did you crank it up to see if higher volume levels had anything to do with it squealing?

Nice job but I am inquisitive of why you went with black and white wires in-lieu of green for the heaters?

Not quite related, but is 6l6gc swappable with kt66? planning to change the tubes of my Fender Deville

Really like all you videos. Your very good at explaining everything to anyone, and have a great demenor and don't waste anyone's time. Thanks brother.

Silicone was probably to keep the doghouse from rattling

Nice to see you back.

Your videos should be required viewing for Fender amps, as important as the booklet/ manual that we all ought to read. It can take a life-time of trial and error and evening classes to learn that the various layouts and how/why they work. The BMT tone stack is worth a video or 2 to help users understand why the amp reacts as it does. Thanks, great video .

The silicon under the dog house cover may have been to minimize any transformer vibrations.

Awesome man 👍

How often do you find yourself in this position? The tech before you did a good job, but the customer is super picky and wants something done better than is reasonable? I ask because I expect to encounter people like this once I start servicing amps and I'm not sure how to deal with them.

I've got a client who writes pin numbers around the tube sockets, too.

The silicone on the doghouse might have been to keep it from buzzing or rattling.

It's a rare yet encouraging thing to see decently done previous work.
It's not a pleasant feeling discovering the horror that we usually find.

After owning quite a few different brands amps I can honestly say the Fender board in this build is of the cheaper variety. With cheap components comes problems even in good designs. Ymmv.

Youve worked on alot of amps, what your favorite speaker brand and type. For blues and midgain stuff. Im struggle finding a speaker i like for prs hdrx20 amp. Ive tried 1 x12 2x12 1x 10 2 x10 of alnico and afew ceramics. But i havent found the right speaker yet. I build my amps around a speaker or set of speakers, that how i know what caps and resistors to use in the tone stack. Since i didnt build this i cant find the perfect speaker. Wondered your op.

I don't know much about electronics, and watching your videos reminds me how much stuff I don't know. Always enjoy your videos.

Lovely approach , on the other tech , as a player , I take same approach , constructive not destructive .I always learn even in the most unlikely situation .,,,,,Now back to business , lol , love the systematic approach to said issue , ..Cheers

Could someone have used silicon under the dog house cover due to a rattle? I've never heard of it before but it's one of the only logical things I could come up with.

You mentioned a bad/weak ground could cause the mids to go crazy with the 100k pot. Why isn't what the owner heard a normal function of the 100k pot, turned up, lifting the tone stack from the path? David Allen (and perhaps others) calls that a "raw" control and the 100k pot mod is intended to make a Fender amp sound more "tweedish" (which I personally don't care for). On the other hand, when you turned the mids all the way up, it did not have that characteristic. May have missed something, but, as the curious owner of a Sweet Spot, I have to ask. Thanks

Nice validation of the previous tech!

If it only it was feasible for you to look at my Blues Deluxe. Sound goes out but power is still on.

I can deal with the PCB instead eyelet main board but believe the amp would be better served without the front control board and done in old school fashion. Am I wrong or splitting hairs on this?

A customer just dropped one off to me that blew the fuse because someone shot the power transformer on the utility pole at the party he was playing. Took out two of the tubes as well, they blew my multimeter fuse and my BK auto transformer fuse.

When you let an amp run after repairs/mods, in this vid you mentioned 12 hrs, do you leave it in stand-by or just turn the volume down and leave it in play and check on it later?

Sounded great with your first play, lovely and jangly with a beautiful bottom, just like a Fender Twin should sound.