[Collins] request for info on R-388

[Carl]

These should keep you busy Howie.

http://www.collinsradio.org/51J_R388Asur.pdf

http://www.neidlinger.us/R388.htm

http://www.virhistory.com/navy/rcvrs/r388.htm


 If it has the front panel Break-In switch it is the contract "Order 
25635-Phila-53-36"

R-388's were serialized sequentially, for the most part, by Collins by paint 
under the tag and also stamped in the chassis rear. Production runs started 
over with each contract # and those are what went on the tag.

Carl
KM1H





----- Original Message ----- 
From: "howard holden" <holden7471 at msn.com>
To: <collins at mailman.qth.net>; "Bill Riches" <bill.riches at verizon.net>
Sent: Tuesday, October 06, 2009 5:54 AM
Subject: Re: [Collins] request for info on R-388


> Hi Bill, I checked the bathtubs, the one on the rear panel has no date, 
> but the two on the intermediate divider each have one, in this case 10-53 
> and 11-53. However, I would think those are the dates of the cap 
> manufacture by Aerovox, not the date of the receiver. They appear to be 
> stamped at the same time as the Aerovox data, and in the same typeset. 
> What those dates do, is tell me it could not have been made BEFORE 11-53.
>
> So we're close to home.
>
> Howie WB2AWQ
>  ----- Original Message ----- 
>  From: Bill Riches<mailto:bill.riches at verizon.net>
>  To: 'howard holden'<mailto:holden7471 at msn.com> ; 
> collins at mailman.qth.net<mailto:collins at mailman.qth.net>
>  Sent: Monday, October 05, 2009 9:26 PM
>  Subject: RE: [Collins] request for info on R-388
>
>
>  Dates are usually on the bathtub caps on the rear of the chassis.
>
>  73,
>
>  Bill Riches, WA2DVU
>  Cape May, NJ
>
>
>  One thing has eluded me, though, how do I date this RX? SN 9014, and the
>  only date I've seen so far is the year 1956, "reformed", and MFP on the
>  filter cap plug-in. No nameplate so no contract number.
>
>  Thanks again.
>
>  Howie Holden WB2AWQ
>
>
>
>
>
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