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 Post subject: Sansui HF-R50 tube mono block amp
PostPosted: Mar Sun 24, 2019 2:40 am 
Member

Joined: Jan Mon 28, 2013 9:35 pm
Posts: 1477
Location: Santa Rosa, CA
I've had this for decades waiting to either find a matching unit
or use it with a mono tuner. Other than it being built in 1956
have found very little about it on the net. It uses a pair of 6AR5's
as output tubes.

Would appreciate any info and especially a schematic. Considering
pairing it with the EH Scott Phantom Deluxe chassis I just finished.
Steve

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 Post subject: Re: Sansui HF-R50 tube mono block amp
PostPosted: Mar Wed 27, 2019 10:56 am 
Member

Joined: Sep Thu 23, 2010 6:37 am
Posts: 11770
Location: Powell River BC Canada
I repaired one of those back when we were selling
the Sansui SM series of receivers. (SM 80 was so heavy it had wheels)

My director approved repairing it free for the customer
because we wanted permission to photograph it.

Sansui Hashimoto had started in the audio transformer field and they were
offering output transformers and chokes for kit builders in 1954.

Do post a photo of top and bottom and front.

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de
VE7ASO VE7ZSO
Amateur Radio Literacy Club. May we help you read better.
Steve Dow
ve7aso@rac.ca


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 Post subject: Re: Sansui HF-R50 tube mono block amp
PostPosted: Mar Wed 27, 2019 11:10 am 
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Joined: Jul Fri 18, 2008 10:02 am
Posts: 2104
Location: near ST Louis Mo 62002
http://www.tube-amps.net/index.htm
http://www.tube-amps.net/Sansui_Tube_Era_Products.htm

http://www.sansui.us/Amplifiers.htm

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 Post subject: Re: Sansui HF-R50 tube mono block amp
PostPosted: Mar Thu 28, 2019 1:39 pm 
Member

Joined: Jan Mon 28, 2013 9:35 pm
Posts: 1477
Location: Santa Rosa, CA
Pics are posted on Audiokarma under the Sansui heading.
Did not realize this was such a rare item so will find another
amp for the Scott project.
Steve

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