I have a very old Sunn bass amp, and am looking for specs. I know know that the power amp is a Dynaco Mark IV, and I can get specs for that, but am looking for the specs for the pre-amp. The pre-amp has a "smiley" Sunn logo and controls on the top of the amp as in the other. The logo on the front of the amp is not the "radiating sun" logo and not the smiley one. I think this means the amp dates back to around 1965...the serial number is 1168. I can send pics if that will help. Any idea about how to get specs for this?
Thank you in advance!
Rich
