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 Post subject: FS:Vintage Tube Amps- Hi Fi, P.A.- HH Scott, Thordarson, etc
PostPosted: Jan Thu 11, 2018 3:58 am 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
For winter projects I am offering a few of mine so I can get to the pieces other folks have left here for repair before spring ...

First is a rare RAULAND 1520 amplifier that has not been messed with yet other than cosmetic detailing...this is a mono integrated hi fi amplifier
with a variety of added features such as hum filter, bias adj., etc, uses common tubes such as 5881 (6L6G) and 12AX7's, etc below chassis...

Someone before me drilled 2 holes in the corner of the top 1950's modern contemporary styled "golden crest" metal panel, for what reason (wiring out of wall cabinet perhaps?) I do not know...other than that pretty much original.
I am not able to find ANY spec literature or catalog adverts on this from any distributor, but I am guessing it was made sometime between 1955 and 1958...I can include a scan (or maybe even a real photofact if I have one) with purchase- $100

(2) WEBSTER CHICAGO 166-1 mono Amplifier & Speaker - This was originally sold with a separate matching phonograph...I removed the 4 pin plug from the rotting cloth cord (taped) with a ΒΌ" plug and replaced the filter caps externally from can (see photo), powered it up briefly on variac and never got back to it...
Would recommend replacing most of the red "Tiny Chiefs" present, as well as signal troubleshooting and organizing better my electrolytic christmas tree creation...some of the resistors used around the can due to heat and age should probably be checked or replaced as well before use...
Tubes are included and tested good on my TV-7 tester - $100

(3) H.H. SCOTT 220-A Mono PAIR- Hermon Hosmer's first amplifier offering (10- 55K freq. response), just after the RC-2 by Radio Craftsmen..This was one of the first commercially offered Hi-Fi amplifiers...It took me years to find a matching amp with a good pwr transformer to match the amp I inherited from my Dad...eventually I lucked out on the correct replacement transformer, every amp I bought had a bad one on auction site...Both of these amplifiers were rebuilt 4 -8 years ago and have been sitting since their individual testing out...
One of the amps needs higher handling voltage electrolytic caps installed (so you get bonus caps!), I used what was recommended on the schematic
at the time as I used a generator for my A.C. power and could stabilize the A.C. voltage at 117 v...now I live on a power line with who knows 127 V?

You MUST have the resistor installed in the octal plug on front OR a 120 HH Scott preamplifier installed in socket or the pwr transformer will fry in seconds, as the transformer provides power to the external preamp.

Otherwise besides that early foible these are wonderful sounding amplifiers, the best I have heard besides a Brociner, which I finally found a match to (another project I hope to get to)
All tubes except the power tubes (6L6G) included,

Will email more detailed photos to those seriously interested in purchase, (send a PM) -$750 OBO

(4) Bogen CHA-33- A late fifties PA amp often converted for use as a instrument amp, this has been mostly rebuilt with new capacitors, powers up but needs circuit troubleshooting for operation...Does not include tubes...uses 6L6GB rather than 6L6GC- $125 OBO

(5) National Horizon 20- This Hi-Fi amp was made by National Radio when they briefly entered the Hi-Fi craze in the mid 1950's...uses a unity coupled circuit similar to MacIntosh amps- Includes Horizon 5 tube preamplifier installed-no tubes or power cord included, needs rebuild of capacitors- Have schematic and other materials I can scan for buyer after sale- $125 OBO

(6) Thordarson 31W25- A 1940's early Art Deco PA amp- needs rebuild- in very nice condition with original "T" knobs-tested tubes included- $250

(7) Operadio 1010- This was converted years ago to 6 volt battery from A.C., all tubes and vibrator included...needs restoration back to original circuit
or great for display as/is...- $150 OBO

All prices plus least cost shipping from 95490.


Attachments:
AAF+ Rauland 1520 3.JPG
AAF+ Rauland 1520 3.JPG [ 80.24 KiB | Viewed 1525 times ]
AAF+ Rauland 1520 2.JPG
AAF+ Rauland 1520 2.JPG [ 150.77 KiB | Viewed 1525 times ]
AAF+ Rauland 1520 7.JPG
AAF+ Rauland 1520 7.JPG [ 161.53 KiB | Viewed 1525 times ]
AAF+ Rauland 1520 8.JPG
AAF+ Rauland 1520 8.JPG [ 129.7 KiB | Viewed 1525 times ]
AAF+ webster Chicago 166-1 9.JPG
AAF+ webster Chicago 166-1 9.JPG [ 155.75 KiB | Viewed 1525 times ]
AAF+ webster Chicago 166-1 8.JPG
AAF+ webster Chicago 166-1 8.JPG [ 148.13 KiB | Viewed 1525 times ]
AAF+ Webster 166 1.JPG
AAF+ Webster 166 1.JPG [ 115.63 KiB | Viewed 1525 times ]
AAF+ Webster Chicago 166-1 7.JPG
AAF+ Webster Chicago 166-1 7.JPG [ 118.5 KiB | Viewed 1525 times ]
AAA HH Scott 220-A 2 1 25 18 47.JPG
AAA HH Scott 220-A 2 1 25 18 47.JPG [ 122.25 KiB | Viewed 1134 times ]
AAA HH SCott 220-A 1 1 25 18 48.JPG
AAA HH SCott 220-A 1 1 25 18 48.JPG [ 137.23 KiB | Viewed 1134 times ]


Last edited by ampstamp88 on May Sat 12, 2018 3:58 am, edited 9 times in total.
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 Post subject: Re: FS:Tube Amps: HI FI & GTR, RAULAND, HH Scott, Webster Ch
PostPosted: Jan Fri 12, 2018 1:25 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 402
Location: Copake,NY
Whats the tube line up in the Webster-Chicago?


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 Post subject: Re: FS:Tube Amps: HI FI & GTR, RAULAND, HH Scott, Webster Ch
PostPosted: Jan Fri 12, 2018 8:10 am 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
According to my photofact, The tube line up for Webster Chicago 166 is:
6AT6
12AX7
(2) 6V6GT
5Y3

Another photo of the H.H. Scott 220-A pair....plus photos of the Bogen CHA-33 and National Horizon 20.


Attachments:
AAA HH Scott 220-A pair 1 25 18 49.JPG
AAA HH Scott 220-A pair 1 25 18 49.JPG [ 58.42 KiB | Viewed 1134 times ]
AAF+ Bogen Challenger CHA-33 13.JPG
AAF+ Bogen Challenger CHA-33 13.JPG [ 125.62 KiB | Viewed 628 times ]
AAF+ Bogen Challenger CHA-33 14.JPG
AAF+ Bogen Challenger CHA-33 14.JPG [ 159.17 KiB | Viewed 628 times ]
AAF+ Bogen Challenger CHA-33 15.JPG
AAF+ Bogen Challenger CHA-33 15.JPG [ 160.33 KiB | Viewed 628 times ]
AAF+ Bogen Challenger CHA-33 16.JPG
AAF+ Bogen Challenger CHA-33 16.JPG [ 190.28 KiB | Viewed 628 times ]
AAF+ Bogen Challenger CHA-33 17.JPG
AAF+ Bogen Challenger CHA-33 17.JPG [ 149.39 KiB | Viewed 628 times ]
AAF+ Bogen Challenger CHA-33 18.JPG
AAF+ Bogen Challenger CHA-33 18.JPG [ 118.37 KiB | Viewed 628 times ]
AAF+ National Horizon 20 4.JPG
AAF+ National Horizon 20 4.JPG [ 108.39 KiB | Viewed 628 times ]
AAF+ National Horizon 20 5.JPG
AAF+ National Horizon 20 5.JPG [ 95.65 KiB | Viewed 628 times ]
AAF+ national Horizon 20 6.JPG
AAF+ national Horizon 20 6.JPG [ 133.63 KiB | Viewed 628 times ]


Last edited by ampstamp88 on Mar Tue 20, 2018 8:21 pm, edited 3 times in total.
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 Post subject: Re: FS:Tube Amps: HI FI & GTR, RAULAND, HH Scott, Webster Ch
PostPosted: Jan Fri 12, 2018 8:12 am 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
Photos of the Thordarson 31W25 and Operadio 1010 (ferocious Tomcat Bogen not included)


Attachments:
AC+ Thordarson 31w25 17.JPG
AC+ Thordarson 31w25 17.JPG [ 150.83 KiB | Viewed 628 times ]
AC+ Thordarson 31w25 19.JPG
AC+ Thordarson 31w25 19.JPG [ 136.7 KiB | Viewed 628 times ]
AC+ Thordarson 31w25 20.JPG
AC+ Thordarson 31w25 20.JPG [ 146.04 KiB | Viewed 628 times ]
AC+ thordarson 31w25 21.JPG
AC+ thordarson 31w25 21.JPG [ 179.39 KiB | Viewed 628 times ]
AC+ Thordarson 31w25 22.JPG
AC+ Thordarson 31w25 22.JPG [ 135.75 KiB | Viewed 628 times ]
AC+ Thordarson 31w25 23.JPG
AC+ Thordarson 31w25 23.JPG [ 122.96 KiB | Viewed 628 times ]
AC+ Thordarson 31w25 18.JPG
AC+ Thordarson 31w25 18.JPG [ 164.83 KiB | Viewed 628 times ]
AAF+ Operadio 1010 8.JPG
AAF+ Operadio 1010 8.JPG [ 93.84 KiB | Viewed 146 times ]
AAF+ Operadio 1010 11.JPG
AAF+ Operadio 1010 11.JPG [ 87.66 KiB | Viewed 146 times ]
AAF+ Operadio 1010 9.JPG
AAF+ Operadio 1010 9.JPG [ 132.94 KiB | Viewed 146 times ]


Last edited by ampstamp88 on May Sat 12, 2018 4:05 am, edited 2 times in total.
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 Post subject: Re: FS:Tube Amps: HI FI & GTR, RAULAND, HH Scott, Webster Ch
PostPosted: Jan Sun 21, 2018 6:53 am 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
bump


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 Post subject: Re: FS:Tube Amps: HI FI & GTR, RAULAND, HH Scott, Webster Ch
PostPosted: Feb Fri 02, 2018 4:54 am 
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Joined: Apr Sat 04, 2015 6:15 am
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Location: Dos Rios, CA.
bump, all still available...


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 Post subject: Re: FS:Tube Amps: RAULAND 1520, HH Scott 220-A, Webster, Eic
PostPosted: Feb Sun 18, 2018 10:51 pm 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
bump


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 Post subject: Re: FS:Tube Amps: RAULAND 1520, HH Scott 220-A, Webster, Eic
PostPosted: Mar Fri 02, 2018 8:36 pm 
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Joined: Apr Sat 04, 2015 6:15 am
Posts: 691
Location: Dos Rios, CA.
bump


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 Post subject: Re: FS:Vintage Tube Amps- Hi Fi, P.A.- HH Scott, Thordarson,
PostPosted: Mar Tue 20, 2018 8:29 pm 
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Joined: Apr Sat 04, 2015 6:15 am
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Location: Dos Rios, CA.
Bump- More amplifiers added to post.


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 Post subject: Re: FS:Vintage Tube Amps- Hi Fi, P.A.- HH Scott, Thordarson,
PostPosted: Apr Tue 03, 2018 11:09 pm 
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Joined: Apr Sat 04, 2015 6:15 am
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Location: Dos Rios, CA.
Bump, all still available...


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 Post subject: Re: FS:Vintage Tube Amps- Hi Fi, P.A.- HH Scott, Thordarson,
PostPosted: Apr Sat 21, 2018 3:52 pm 
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Joined: Apr Sat 04, 2015 6:15 am
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bump


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 Post subject: Re: FS:Vintage Tube Amps- Hi Fi, P.A.- HH Scott, Thordarson,
PostPosted: May Sat 12, 2018 4:06 am 
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Location: Dos Rios, CA.
bump, new amp added...a phantom of the Operadio has appeared.


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