Brian Roth Technical Services Library
A request was posted to the Ampex mailing list for the schematic info on a control PWA for a MM-1200. The schematic number is 4840438B which is for the 4050864 PWA. Due to limitations of my scanner, I had to do the schematic in two passes with an overlap. I included the parts list and PWA parts layout drawing:
Ampex MM-1200 transport control PWA service info.
A copy of the ATR-100 I/O and metering module was requested on the Ampex list. I originally uploaded two quick n' dirty scans of each page portion (and generated "left" and "right" sections), but Rick and Betty Chinn did their own scan and stitched them together.
A copy of the schematic for the ATR-100 analog card was requested on the Ampex mail list. These two "panels" also include pencilled-in remarks from my classes in Redwood City, circa 1979.
In the meantime, I ran across a "toooob mic preamp" built from the frame of an Ampex PR-10-1 chassis, and John Fletcher scanned and sent these schemos along:
Here's a "quick 'n dirty" PDF scan of the service info for an Audio + Design Easy Rider compressor:
This three page PDF contains the audio electronics frame schematic with some overlap between the left, middle, and right sections and need to be "stitched" back together. The original was 23 3/4" wide by 11" high.
Rather than add more clutter to this page, I began a seperate page for Ampex Field Engineering Bulletins:
Per Larry Miller's request, I added a scan for the Ampex 4010040-01 mic preamp accessory module. This is from my AG-300 manual:
Here are two pics of a MM-1000 8 track from a rumpled 1968 brochure.
Here's a list of Ampex part numbers for their tape heads. This file was updated by Jay Mcknight (President of MRL tapes) and is a searchable PDF:
Ampex ABR10/15 brochure scan; sorry about the file size (approx. 1.5 Megs), but it was a booger to scan since the original used a rather billious 2-color print combination.
Scans of some 1970's Spectra Sonics console brochures.
I finally began to organize a bunch of my links, found here.