VINTAGE HEATHKIT UA - 1 MONOBLOCK TUBE AMPLIFIER TRANSFORMERS GOOD
Item History & Price
| Reference Number: Avaluer:15260727 | Type: Tube Amplifier |
| Brand: Heathkit |
Here is a vintage 1958 Heathkit UA-1 EL84 tube amplifier ready for a nice restoration.
I ran a sweep on the output transformer using a signal generator and a scope. I also connected power to the power transformer and checked output voltages. I will guarantee both transformers are good.
However, this needs a full electrical restoration before being put into operation. I would recommend that ALL of the resistors and caps be replaced (there ...aren't that many). I have cut the power cord off of this to prevent anyone from just putting in tubes and plugging it in to "see how it sounds." That would be a great way to destroy one or both of the transformers. I sold a monster Altec theater amp to someone a couple of months ago with the same statement about servicing it, but I didn't cut off the power cord. Of course, he immediately filled it with tubes and plugged it in, then sent me a message that it sounded terrible. No kidding!
You'll want to get some nice new production or NOS tubes to go in this after it's serviced, then it should be ready for the next 60 years. These are beautiful sounding amps with efficient speakers.
The paint on this is in poor condition. You can see the top of the chassis has lots of paint damage. Paint on the perimeter and front panel is still good, though. You could just repaint the top of the chassis a matching heathkit gold and be good to go. The transformers have been repainted and look good. The feet on the bottom are worn out. Includes the preamp input shorting plug.
I'm going to put a flat $35 shipping on this, which should almost cover shipping cost to the east coast. If shipping to you is less, I always refund any unused shipping charges. I know how to pack equipment to arrive safely. This will ship via Fedex Ground.
I ran a sweep on the output transformer using a signal generator and a scope. I also connected power to the power transformer and checked output voltages. I will guarantee both transformers are good.
However, this needs a full electrical restoration before being put into operation. I would recommend that ALL of the resistors and caps be replaced (there ...aren't that many). I have cut the power cord off of this to prevent anyone from just putting in tubes and plugging it in to "see how it sounds." That would be a great way to destroy one or both of the transformers. I sold a monster Altec theater amp to someone a couple of months ago with the same statement about servicing it, but I didn't cut off the power cord. Of course, he immediately filled it with tubes and plugged it in, then sent me a message that it sounded terrible. No kidding!
You'll want to get some nice new production or NOS tubes to go in this after it's serviced, then it should be ready for the next 60 years. These are beautiful sounding amps with efficient speakers.
The paint on this is in poor condition. You can see the top of the chassis has lots of paint damage. Paint on the perimeter and front panel is still good, though. You could just repaint the top of the chassis a matching heathkit gold and be good to go. The transformers have been repainted and look good. The feet on the bottom are worn out. Includes the preamp input shorting plug.
I'm going to put a flat $35 shipping on this, which should almost cover shipping cost to the east coast. If shipping to you is less, I always refund any unused shipping charges. I know how to pack equipment to arrive safely. This will ship via Fedex Ground.
