Vintage Tube Amp

Can be used for Tube amplifier or speaker crossover.

Can be used for tube amplifier or speaker crossover.

For sale is a pair of Fisher 50-AZ amplifiers in beautiful original condition. I have owned these for many years but never got around to restoring them. The serial numbers are 327XX and 327XX and they’re about 20 apart. This makes them quite a find. It appears to me that these are mostly, if not completely original. They have not been turned on for decades. With that being said, don’t even think about using these as they are. They will absolutely need to be restored before they are used or plugged into any outlet. If you would like me to do the work for you, let’s discuss. I guarantee the transformers are good but make no guarantees about the condition of the tubes. You’ll likely want to go NOS on the power tubes anyway. 12AU7s are all US made. Cosmetically, these amplifiers are nice, but the chassis are not perfect. It appears that someone improperly cleaned one of the amplifiers and the other does have some light oxidation. This is typical and it’s rare to find one of these without some level of cosmetic age related issues. Heck, I’m almost sure some of these scratches/imperfections were on the units when they were made. I know how to pack these properly and have the materials on hand to do so. Terms (Please read these). Please message me if you have any gear for sale but don’t want to deal with listing. I live in Central California and travel to LA as well as the bay area often! You do not need to live near me. This rules comes from dealing with an individual who offered an attractive trade if I delivered the speakers to him. This ended up being a tremendous waste of time. I sell mostly vintage electronics. As such, these items are old and typically out of spec from when they were new. I do my best to test these items and make sure they work before they’re sent out, but I do not guarantee or represent that they will meet the original specifications. I may not even be able to test them, in which case assume that they don’t work. However, there are times where I may miss something. If that happens, I hope that you would agree that the most efficient way to take care of an issue is if you simply message me before opening a case or doing anything else. I need an outlet for these items online, so I have no reason to send you something that doesn’t work unless I’ve noted that it doesn’t. I pack items correctly. I know what it takes to get an item to you safely. You will NOT have to ask for it. I will do my best to get items out within a few days, however there are instances where that is not possible especially around holidays. The policies here are difficult in this regard because these vintage items in particular need to be moved and packed carefully. I do not want to damage anything by rushing. With this all being said, if there is any reason that you don’t feel that you can leave FIVE stars in every category, please reach out to me before leaving any feedback other than positive with all five stars in every category. Please message me to work this o.

Pr Altec 340A Vintage Tube Amplifiers, 1950s, Clean, Serviced, Close SN. S/N: 461 & 466. Both amps have the same Peerless transformers. Parts number on the Peerless decals: Power 6142, output 16345. Very close serial numbers clean 1950s matched pair. Amps are the same circuit – schematics are paper labels on the bottom pan. No modifications to circuit design. At some point, most likely the 60s or 70s three of the same front end capacitors in each amp were changed to vintage Cornel Dublier and Sprauge. There a few very minor chips along the bottom edges of the amps. Chassis and transformers are rust free and the paint has the original glisten. The camera picked up all kinds of reflections in the paints during the snapshots. It is not unusual to see some potting compound leak from the transformers. In this case there are stains under the output transformers of each amp. In my experience this is not a sign of any trouble. Raytheon 6550 output tubes have been tested and matched on an Amplitrex AT1000. I have experienced Raytheon 6550 tubes in government contractor’s inventory. Raytheon made a very high quality product. The AT100 does a very thorough job of testing each tube twice and carefully testing for gas and increased current draw during each tube tested. The 12AY7 and 12AU7 front end tubes are quality vintage 1960s tubes, and measure almost high. What makes these amps so unusual and have such great sound is the 0A2 regulator tube on the 6550 screen voltage. Regulation is an added expense in manufacture cost but the sound quality makes it all worthwhile. This is a solid pair of classic low production amps that sound very clean, much cleaner sound than the competition’s 6550 amplifiers. The combination of clean detailed sound and the characteristic tube amp sound quality sounds great even today. New owner should be aware power supply capacitors this old will need replacement at some time. Please have the services of an experienced tube technician for future parts upgrade. IMPORTANT – Be sure to read the Terms and Conditions of Sale. Hardware Packing – Domestic and Outside US: Item will be wrapped with bubble wrap in two directions and double boxed. Use of a friend’s account or biding for a friend is not allowed. The item “Pr Altec 340A Vintage Tube Amplifiers, 1950s, Clean, Serviced, Close SN” is in sale since Friday, March 22, 2019. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “wevtt” and is located in Waltham, Massachusetts. This item can be shipped worldwide.

• Model: 340A
• Country/Region of Manufacture: United States
• Type: Power Amplifier
• Brand: Altec

Pr Altec 340A Vintage Tube Amplifiers, 1950s, Clean, Serviced, Close SN. S/N: 461 & 466. Both amps have the same Peerless transformers. Parts number on the Peerless decals: Power 6142, output 16345. Very close serial numbers clean 1950s matched pair. Amps are the same circuit – schematics are paper labels on the bottom pan. No modifications to circuit design. At some point, most likely the 60s or 70s three of the same front end capacitors in each amp were changed to vintage Cornel Dublier and Sprauge. There a few very minor chips along the bottom edges of the amps. Chassis and transformers are rust free and the paint has the original glisten. The camera picked up all kinds of reflections in the paints during the snapshots. It is not unusual to see some potting compound leak from the transformers. In this case there are stains under the output transformers of each amp. In my experience this is not a sign of any trouble. Raytheon 6550 output tubes have been tested and matched on an Amplitrex AT1000. I have experienced Raytheon 6550 tubes in government contractor’s inventory. Raytheon made a very high quality product. The AT100 does a very thorough job of testing each tube twice and carefully testing for gas and increased current draw during each tube tested. The 12AY7 and 12AU7 front end tubes are quality vintage 1960s tubes, and measure almost high. What makes these amps so unusual and have such great sound is the 0A2 regulator tube on the 6550 screen voltage. Regulation is an added expense in manufacture cost but the sound quality makes it all worthwhile. This is a solid pair of classic low production amps that sound very clean, much cleaner sound than the competition’s 6550 amplifiers. The combination of clean detailed sound and the characteristic tube amp sound quality sounds great even today. New owner should be aware power supply capacitors this old will need replacement at some time. Please have the services of an experienced tube technician for future parts upgrade. IMPORTANT – Be sure to read the Terms and Conditions of Sale. Hardware Packing – Domestic and Outside US: Item will be wrapped with bubble wrap in two directions and double boxed. Use of a friend’s account or biding for a friend is not allowed. The item “Pr Altec 340A Vintage Tube Amplifiers, 1950s, Clean, Serviced, Close SN” is in sale since Monday, February 11, 2019. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “wevtt” and is located in Waltham, Massachusetts. This item can be shipped worldwide.

• Brand: Altec
• Type: Power Amplifier
• Model: 340A
• Country/Region of Manufacture: United States