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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
hilde45's avatar
hilde45
4,974 posts
 

@tomic601 Thanks. I don't know how many "orange caps" there are out there. I'm replacing mine with Mundorfs and if it goes south, I'll change them back.

jond's avatar
jond
5,807 posts
 

@tomic601 and @hilde45 are you guys telepathically linked? 😁 I see no posts from Hilde in this thread about orange drops? And as usual great answer from Ralph.

tomic601's avatar
tomic601
12,911 posts
 

@jond sort of..I mentioned in a thread Hilde started that i ( and others ) had been rolling caps as tweaks way back when Sprague Orange Drops were a " thing "...I thought it amusing Ralph weighed in here....

back to the music....

atmasphere's avatar
atmasphere
11,807 posts
 

I thought it amusing Ralph weighed in here....

One of my employees refurbished a pair of the little brothers to this amp, that he got from an old theater. IIRC they made about 60 watts using a pair of 6550s. 

 

cdietze OP
6 posts
 

That amp was probably a 12182.  They were stock with 6146 output tubes but easily converted to 6550's.  The 6146's ran away easily. I had one about 40 years ago and one got so hot it melted the tube bottle.  

I picked up one of the big amps from storage tonight and I'll post some pics tomorrow. 

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