Tag Archives: RCA

RCA BCM-1A Auxiliary Console c.1953

Posted on 05/01/2013 by chris

Earlier this year we ran a piece regarding the c. 1952 RCA BC-2 broadcast console.  T.F. has also provided us with a subsequent scan from AE mag, 1953, which highlights the companion BCM-1A “extender” console, designed to add an additional … Continue reading →

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Compressor Roundup c. 1963

Posted on 04/19/2013 by chris

Today on PS dot come: a short but v v informative piece from BROADCAST ENGINEERING , July 1963, which gives specs for nearly all of the broadcast compressors that were available that year.  Models covered include: Collins 26J Auto-level, Collins … Continue reading →

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RCA microphones circa 1963 – 1965

Posted on 04/10/2013 by chris

Above: RCA 77, BK1, BK5, and a slew of others, all referred to by their ‘alternate’ MA-designations: the MA-2311, 2313, 2314, 2315, 2316, 2317, 2318, and 2319.   Can someone tell us why RCA used standard model names, MA designations, and … Continue reading →

Posted in Microphones | Tagged | 3 Comments

RCA BC-2B Recording Studio Console c. 1952

Posted on 08/10/2012 by chris

Reader T.F. sent me this scan from AUDIO ENGINEERING c. 1952: the introduction of the RCA BC-2B Console. LEFT: The BC-2B incorporated the RCA MA-11241 dual mic pre-amp unit; a two-stage circuit, each channel used a single 12AY7 for, I … Continue reading →

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RCA OP-6/BA-2 Hybrid Mic Pre Amp: Listening Test/Shootout

Posted on 06/04/2011 by chris

Alright!  So earlier this week I described the successful completion of the RCA OP-6/BA-2 microphone preamp.  Check out this previous post for all the construction and technical details.   The short story is: the RCA OP-6 is one of the … Continue reading →

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Building an (almost) RCA OP6 Mic Preamp

Posted on 05/31/2011 by chris

(image source) The RCA OP-6 ‘Portable Amplifier’ is one of a handful of truly visually-iconic vintage mic preamps.   The OP-6 was designed as a “remote,” as-in, ‘on-location’ single-channel mic preamp for radio station broadcasts.  It uses three 1620 (6J7) tubes  … Continue reading →

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RCA Mixing setup at the Hollywood Bowl arena c.1955

Posted on 05/18/2011 by chris

You gotta wonder where this thing ended up.   Consider the history that passed through these faders.

Posted in Concert Sound, RCA | Tagged , , | 2 Comments

Audio Engineering Magazine Pt 6: audio equipment

Posted on 05/09/2011 by chris

The earliest advertisement for the Magnecorder tape machine that I have seen. BTW get ready for a large collection of original Magnecord, INC documents from one of the company founders: on this site: soon. In the sixth and final installment … Continue reading →

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Audio Engineering Magazine Pt 4: Schematics

Posted on 05/07/2011 by chris

Today we’ll look at some of the more interesting audio-circuit plans and schematics from the first two years of Audio Engineering magazine.  Pictured above is a great lil’ amplifer (approx. 30watts) that uses a single 6AS7G tube for push-pull output. … Continue reading →

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American Microphones of the 1940s: Audio Engineering Magazine Pt 3.

Posted on 05/06/2011 by chris

The Amperite Velocity Microphone Continuing our review of Audio Engineering Magazine, today we will look at some of new offerings in microphones available to audio engineers in the late 1940s. The Electrovoice 635 The Electrovoice 650 and 645.  I really … Continue reading →

Posted in Microphones | Tagged , , , , , | 3 Comments