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! Thank so much guys. MJTF- GLAD to see you back! Ya.. I started w/ the KA-3500 thread and going to try the 281/0302 when they get here and 'rig' the stock heatskink like everybody else(drill ' tap). KingB- dont really understand what you did ?!? Replacing all zeners/diodes, the dreaded...

Ya..nothing in Google images or anywhere else except for the Fleabay posting to sell it and my guess is the same as yours- seller got it from a high $$ retirement area estate sale and may of sat in a dust free closet for 35 years or more. Tried what I could find in old RD archives and nothing...

Youre not kidding- hate smartphone browsers. D26 was fried and replacing it. Confused on post #5 this thread. Said the same thing as reply #4. So the old B507 is PNP and the KSA940, MJE15031 or 15033 ARE PNP also? Trying to rig a bigger heatsink for Q15 as you guys are so right. Wayy too...

The fewer the replies the rarer and more valuable it gets. Still no sources for a service manual or any info about it at all other than whats on the unit itself. Curtis Mathes Rutherford model 66 55522.

My typo. Sanyo B507. Pioneer SA-6700, Q15, 2SB507

Got a blue-green Sanyo B07 transistor that doesnt check out and need a modern replacement. Cant find anything. Thanks

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I realize that on the offset- have done dozens. Wanted to know what the SM says is the acceptable range. Yes has the pots and is adjustable. Again, cant find a SM, info, or anything about it at all anywhere. Dont want to recap it until I can find info. ANYONE ever seen one before? Curtis...

Recently obtained this minty. mint mint rare Curtis Mathes Rutherford model 66 silver faced receiver. Looks like a smaller vintage Pioneer, Marantz silver face. Thick heavy wood case. Nothing on the back except as stated and 55522. All internal ltyics are the old sky blue. Its like it was...

Ya I saw that thread a month ago. Dont know if the NJW0281G and NJW0302G are good replacements for the 6700 and if they would fry anything else. Been told to "try" MJE 15032 and 33G's and "see" if they work.. Also, ANYONE know the exact location of the triac that you should just pull completely ?

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Where was the thread I thought I read that stated what to replace the dreaded B616A/D558A batwings with, and a new or added diode array in a SA-6700? Picked up a beautiful one but dead right channel and one of the old NEC 558's is dead. Been thru it completely and even the zeners and the triac...

LOL. LOLOLolol. Just more junk for a junk man.

Almost done recapping+ a 780. Seeing a lot of probs ppl have w/ the emitter resistors by the Darlingtons. All 4 of of the marked 0.22 ohm 2w resistors read .7~.8 ohms on my lowest 200 DMM scale in or out of the board. Misread? Problems?

Yep pretty much what I did except for the bleeder- where did you install your bleeder resistor? Isnt the case roomy and amazing? I recently had a offer on mine that is still almost too good to refuse. Almost double what I initially paid for mine without all my mods and replacements. After...

What did MarktheFixer in the Pioneer forum of AK say? You would of been better off posting your original post there.

First get this ? in the Pioneer section- you'll have better luck. TRIPLE check that pot again (remove it) and clean it good with DeOxit. If you can ensure its ok, sounds like your DC offset is off and has drifted from spec. Real common on old units that havent been fully recapped and...

Great. You like them. Ive got some swamp land in Florida I'll sell you anyone else that say "it is perception", at a great price!

Sheesh.. another Hivi 3.1a thread. These were (and are if you can find them) the #1 consumer sucker punch kit over the past 5 years. They were dumped on the market by what's left of Swan and several other junk dealers and sources because from-the-get-go Swan knew their engineering was faulty and...

Who actually verifies the electrolytic capacitors, transistors, tubes, and/or anything else in your new (last 10 years) purchased audio gear or consumer electronics (like TVs) when you get it home or to the shop? (Bottom end Tier 3 and 4 'lytics and counterfeits are at all time highs now).

Less than (<1) percent. Audiokarma, Diyaudio, etc demographic is white men primarily 49+ years old or older, semi educated or no post high school education at all (4 year college or university), lower or less than middle class, 50% claim to be married (45% divorced 5% "single"), with less than...

+1 Its already known in the industry the Silmic II is one of the best 'lytics out there for DIYers and everybody else, especially audiophiles. Written in stone. Dont worry about the negative comments. My wife did her Doctoral Thesis (social/political) over 2 decades ago on forums like this one...

Do you have the original service manual? How are you going to calibrate the DC offset bias after youre through?

One of the best and top Tier 1 audiophile grade electrolytics of all time. Devastating. :no:. Posting it here to again get the word out. Now we're gonna have every scam junk dealer in the world listing them all dried out for 40~70% above MSRP for 20 years, when the shelf life fresh and new is...