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try to find a pair of used JBL k110's.

I'm servicing a '68 Fender blackline Super Reverb. It has the blackface circuit. Redoing the filter caps, cathode bypass caps, power tube socket resistors, retubing with VOS tubes, and reconing a couple speakers that had rubs. Waiting on most of the parts to arrive. Even with the original 40...

Crane's post is right on regarding preamp tubes. Mix to personal taste. Regarding being used to biasing your Fender, exactly. Bias mod kits are available online for your amp. The mod is doable as well as reversible.

They are expensive in US too. That is why I went the 6bg6ga route with adapters via eBay USA and bought quite a few until I had decent main and spare pair matches in gray and black plate (yes!) 6bg6ga Sylvanias. That might not work for you in your location. There is an online dealer that...

Thanks for the correction and clarification, and please accept my apology. For a person with your knowledge my words probably sounded rude at times. Yes, I have tried 7581a Sylvania and they can possibly draw more at idle, but that depends on who is making the 7581a. The Sylvania build is...

You could use them, but it would be risky, the risk compared to the cost of installing the bias mod that could easily be set to either Mesa or other values is unacceptable. It's out of warranty, but that doesn't mean one should take chances just to save some pennies, you have a very nice amp...

There are folks who can do that. Bassman/ODS is a no brainer to the right builder, See the Marsh Overlord. I have one in 50w and it's great. The SSS circit is very complicated and has several feedback loops as well as the entire inductor thang, It's reverb circuit is also more complicated...

Warning! This is not the answer that the OP was originally looking for... The amp is out of warranty. Bias mod kits are easily available to easily install by a quality tech. The mod is easily reversible so if vintage collectible resale value is important, well, it just doesn't need to be...

yeah we did, apologies from me also.

I'm still learning my caps...I'm thinking like the 6ps-716p series, in orange drop, they are the ones used in D- style builds with their smooth OD tones.

Aww, gosh, I stocked up on .01's, .15's, .22's in PIO's already, but thanks! I bet the PETP's are closer to the polypropylene stuff like the 716p's in orange drop, but a bit smoother?

In what way did these k73's earn your preference? I looked 'em up, still pretty affordable, and lots of different ratings with that poly material.

No 'lytics. Just tone caps, K40Y-9 and k42-Y, using 400v and 630v ratings. Several vendors on ebay have 'em. Their version of "Sprague Vitamin Q." Superb sounding, affordable, made a big difference from the stockers. Much more musical. Commie caps great bang for the buck...easy to find...

:shock: HIJACK ALERT :shock: Stokes! Funny you should write to me about vintage re-do's. I have purchased three Dumble clones, my 2/12 Mav gets little use now, nice as it is, it's for sale at a not cheap price, but the thing that has changed the most is my learning more amp theory and...

Dumble did a variety of amps. Some of his earlier ones were Bass amps, with some Ampeg SVT influence in the PI section, but mainly the Bassman circuit was the daddy for his conversions, as well as the 80's ODS series, the Bassman iron was about the beefiest 2x6l6 iron Fender used.

Glad that they are well liked! Two thicknesses of one inch heatshrink over the sides of the bottle helps the microphonic situation after running 10 minutes or so. The material gets more rubbery and damp-y when it gets hot. Some of the tube coolers out there do a good job at reducing...

Stokes words, +1, right on.

Monsta! Howyadoin? I have a Weber MASS 100 and in some situations found it indispensable. I have used it on several amps. And the best part is that when using the direct box side of it nto the PA I get much more detail coming out of the speakers than if the amp were miced. The built in tone...

.......Monsta! Can relate to selling my Mesa, still have my namesake, but I'd sell it and miss it right now for the right offer. With the tubes and speakers in it, won't be cheap. Have to say that I'm surprised by your post topic. If I had your knowledge of amp tech-ing I'd be building...

Hi, It sounds like you might want to buy just enough to get the job done and not spend too much money. The DC-3 is a pretty old amp. So you can pick up some good used vintage old stock tubes for it and get more authentic dC-3 tones than with brand new just made tubes of any brand. I'm...