This is another of my restored compilations of data from RCA catalogs, instruction manuals, broadcast ads, technical bulletins, and RCA Broadcast News Magazine articles--- all relating to the history and development of the Junior Velocity Microphone!

 

This booklet has information on the MI-4010-A, the 74-A, and the 74-B microphones, the smaller brothers to the 44-A, 44-B, and 44–BX series microphones.  These better-than-new-looking documents are amazing to study, include two complete instruction manuals with complete response curves, specifications, and application information. The cover is a restored cover to a rare 4-page 74-B flyer. There are a total of 30 pages! The originals that make up this booklet would cost several hundred dollars to collect on eBay.

 

So, this booklet is really for owners and collectors of either model. Here are the contents:

 

Introduction and some history.

Table of Contents with sources and dates.

1936 MI-4010-A two-page ad, the first Jr. Velocity Microphone!

1936 Catalog sheets for the Jr. Velocity Mike and Stands for it.

Article “Microphones and Microphones” from Broadcast News Magazine, Oct. 1936.

(this article also appears in my “Supplement 2” booklet, and features the 44-B, 74-A, and the 77-A mikes)

1937 Catalog page with the 74-B mike and three others.

1937 RCA Bulletin for the 74-B.

1937 RCA Bulletin for stands for the Jr. Velocity Mikes.

1937 Instruction Manual for the 74-B.

My article on the Jr. Velocity Microphone in the Movies including history on movie sound and RKO Radio Pictures.

1940 Catalog page with the 74-B and the 88-A pressure mike. Early 1940s Manual for the 74-B mike, with complete response curves.

 

This is really more like a super-manual with a much historic information that gives you the feel of the era. Like my manual restorations, it is plastic ring-bound and has heavy, clear plastic covers to protect it.  The above picture shows just a few of the actual pages in this unique offering for vintage microphone collectors.

Did you know that several companies now offer restoration and repair services for these mics? See the links on my eBay "about ME" page for more information. We offer fine quality protective "bags" for the 44, 74, and 77 series RCA mics, along with manuals, refrigerator magnets, T-shirts and restored RCA ads for the vintage microphones. See my eBay store (click in the heading area above on the left) to see the individual listings for the many restored RCA microphone manuals and documents available. The top category is Microphone Manuals.

The time-consuming restoration process involves carefully scanning the original manual into Adobe Photoshop and spending hours processing each page to produce a manual that looks better-than-new. All photos are stripped out and processed separately. All tears, marks, stains, etc. are removed from the original manual, even printing defects are corrected. The text is brought back to original sharpness and detail, as are all of the illustrations.

Our production standards are high: 

  • Each manual is individually printed in the USA. 
  • We use heavy photo paper for the glossy front and back covers, and
  • 32 lb. laser paper for the inside black & white pages and heavy inkjet paper for pages with color.
  • If the original RCA Manual had a blank page, so will ours!
  • 10-mil thick clear plastic sheets protect the front & back covers.
  • Everything is then bound with a plastic ring comb, so that the manual will open flat and be very durable.

This is a highly professional product that takes a lot of time to prepare, but it is worth it! eBay customer feedback has been very positive regarding quality. So, if you own one of these wonderful RCA microphones, you deserve a quality supplemental booklet of information to go with it.  We also have in our ebay stores the manuals for these microphones.  The photos are of a sample not the actual booklet you will receive.

See my other items for restored RCA mic ads and restored manuals for the 77-D, 77-DX, 44-BX (-B, -D), 44-BX (-H thru -L), 44-BX (-G), 74-B (Jr. Velocity), PB-144, Aeropressure, 88-A, BK-1A, BK-6B, SK-46, SK-50, and the Varacoustic 6203/4 models.

We have several different T-shirts designs.  Since we combine shipping whenever possible -- be sure to alert us when you are making multiple purchases.  

WE COMBINE SHIPPING TO SAVE YOU MONEY 

Our shipping is using eBay's calculator to your specific location as the US Postal service revises pricing on occasion.  Our policy is to refund excess shipping & handling if the combined shipment or eBay calculator charges more than needed.  We use USPS Priority Shipping for USA & Canada & eBay International shipping to all approved countries.

The photos are of an actual restored manual (only a few pages are shown).

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