[Hammarlund] Fw: Another HQ-180A question/ never mind vernier adjustment error

[Bob Young]

The vernier adjustment knob calibration was off, I am now getting close to 3035 KHz.

Bob
________________________________
From: hammarlund-bounces at mailman.qth.net <hammarlund-bounces at mailman.qth.net> on behalf of Bob Young <bobyoung53 at hotmail.com>
Sent: Wednesday, December 6, 2023 12:19 PM
To: hammarlund at mailman.qth.net <hammarlund at mailman.qth.net>
Subject: [Hammarlund] Another HQ-180A question

I'm doing the 3035 strip in the HQ-180A and the URM -25 rings at about 3.038 (with HP 5382A frequency counter), is that too low? T1, T2 and phasing cap C79 constitute a 3035 KHz crystal filter circuit and the manual says not to disturb the adjustments of T1 and T2 unless they become defective. Would almost 5 KHz low constitute something defective or should I just leave it alone and align it to that frequency?

Bob
KB1OKL
______________________________________________________________
Hammarlund mailing list
Home: http://mailman.qth.net/mailman/listinfo/hammarlund
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Hammarlund at mailman.qth.net

List Administrator: Gary Harmon, K5JWK
** For Assistance: gharmon at idworld.net **


This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html