[Hammarlund] SP-600 trio

Bob Young bobyoung53 at hotmail.com
Tue Apr 12 15:39:38 EDT 2022


With a good antenna there are still a lot of European Long Wave stations still broadcasting, I used to get WWBV on 60 kHz on a National HRO-50R1, plus all the beacons.

Bob Young
kb1okl
________________________________
From: Les Locklear <leslocklear at hotmail.com>
Sent: Tuesday, April 12, 2022 3:29 PM
To: Bob Young <bobyoung53 at hotmail.com>
Cc: Hammarlund at mailman.qth.net <Hammarlund at mailman.qth.net>
Subject: Re: [Hammarlund] SP-600 trio

That about covers it. If you like to listen the NDB's or the very bottom of the MW BCB.

Les Locklear


----- Original Message -----
From: Bob Young <bobyoung53 at hotmail.com>
To:
Cc: <Hammarlund at mailman.qth.net>
Sent: 4/12/2022 2:10:34 PM
Subject: Re: [Hammarlund] SP-600 trio
________________________________________________________________________________


Dec. 1954       SP-600-VLF-31   Special frequency range, 10-540khz X-tal frequency control (4 position). Very low frequency receiver.

http://www.hammarlund.info/sp600.html
SP-600 DESIGNATION'S LIST - Hammarlund<http://www.hammarlund.info/sp600.html>
The information above, came from engineering revision ' sign off ' sheets, Robert Fowle obtained from the late Wayne Cordell, last Administrative Sales Mgr for Hammarlund, and are only approximate dates.
www.hammarlund.info<http://www.hammarlund.info>

________________________________
From: hammarlund-bounces at mailman.qth.net <hammarlund-bounces at mailman.qth.net> on behalf of Loren Burkett <lcbur at sbcglobal.net>
Sent: Tuesday, April 12, 2022 3:07 PM
To: Roy Morgan <k1lky68 at gmail.com>
Cc: Hammarlund at mailman.qth.net <Hammarlund at mailman.qth.net>
Subject: Re: [Hammarlund] SP-600 trio


Need an SP-600 historian.
On eBay there is an SP-600 VLF 31

- This the first VLF version I have ever seen
- It has no JX version or SN!!
- Many different mechanical features
- It looks almost new!

The seller is out of Colorado.  radios-n-stuff <https://www.ebay.com/usr/radios-n-stuff> (16364) and Sam says "he got it from someone who restores R390's and SP- 600's

Can anyone explain this variant?

Loren
K3RFC

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