stereo amp unknown

Ampex; San Carlos, CA

Data
Forum
Pictures
Collections

  • Year
  • 1961 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 127920

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: stereo amp unknown - Ampex; San Carlos, CA
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Power amp stereo; pairs with Ampex Tuner Preamp 0118.
  • Net weight (2.2 lb = 1 kg)
  • 0.5 kg / 1 lb 1.6 oz (1.101 lb)
  • Source of data
  • -- Collector info (Sammler)

 Collections | Museums | Literature

 Forum

Forum contributions about this model: Ampex; San Carlos,: stereo amp unknown

Threads: 2 | Posts: 2

This is an amp identical to the one in my Ampex console unit. I hope to add pictures of it very soon. I also have the Owner's Manual with schematic I will upload with the pictures.

 

The stereo console is proudly displayed in our living room and is used regularly. In order to promote longevity of the amp I had to replace the voltage doubler in the amp with a bridge. I have not replaced tubes since. Aside from not being able to reach volume levels I rarely used, the sound got better

Jeff Droll, 10.Sep.13

Weitere Posts (1) zu diesem Thema.

I have the full factory service manual for my Ampex console unit. As soon as I can get it scanned  I'll forward it.

I also replaced the original 6973 tubes with 6GC5's. This required that the original power supply voltage doubler be converted to a full wave bridge. This slightly lowered the output power but cleaned the sound up incredibly. It also has extended the tube life 10 times.

Those changes are noted in the schematic

Jeff

Jeff Droll, 06.Jul.09

Weitere Posts (1) zu diesem Thema.