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RCA 9289 tube amplifiers

The RCA 9289D was the final version of this great 200W amplifier.  It features four 6550 in the output stage and an interesting power supply with OD3 regulators.  My father designed the final version of this amp for RCA and we have several available.  I'm testing the water to see if there's still a market for this excellent amp before I start recapping them, or whether folks would prefer them bone stock.

cdietze
atmasphere's avatar
atmasphere
11,803 posts
 

I brought the amp up slow on a Variac and it passed sine wave. 

That's good! Don't keep running it until the power supply has been refurbished. Otherwise running it is a classic way that a failing filter capacitor causes a power transformer to fail.

 

jond's avatar
jond
5,807 posts
 

@cdietze I tried to look at your pics and it says your album is set to private.

cdietze OP
6 posts
 

Hmm... Sorry about that.  This afternoon was my first experience with Photobucket.  I'll try and straighten that out tomorrow. 

cdietze OP
6 posts
 

Of course, when I tested the link yesterday it worked because it was me.  I've set it to "public" so please let me know if you can't see them. 

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