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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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13th Jul 2006, 10:44 pm | #21 |
Dekatron
Join Date: Feb 2005
Location: St.Ippolyts, Hitchin, Hertfordshire QRA IO91UW
Posts: 3,518
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Re: Racal RA-17: Help needed!
No trickery really - I just set the TB on the scope to a suitable speed so I end up with no more than 2 complete "humps" - then just fiddle with the triggering so that I get a stable trace, then adjust the IFTs one at a time
As I say, very crude, but it seems to work - When I do my B40 I will try to photograph the results and setup to try to help others have a go. Cheers Sean
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Engineers make things work and have spare bits when finished |
13th Jul 2006, 10:47 pm | #22 | |
Retired Dormant Member
Join Date: Oct 2004
Location: Bristol, UK.
Posts: 837
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Re: Racal RA-17: Help needed!
Quote:
The problem with this sort of gear is that it's alright forking out £300 for something you're going to use, but for a job like aligning a comms receiver which probably needs doing when you buy it, then every ten years, it's a lot of money to sit on the shelf for most of us. However, when I bought the 8640A I thought it was an incredible extravagance, but it's so stable and pleasant to use anything else is just horrible. It was a couple of hundred. As you need a sweep generator to align the IFs of any serious comms receiver, AR88s , Eddystones on upwards, I might just bite the bullet and get a proper one. Pete. |
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14th Jul 2006, 1:24 am | #23 | |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Re: Racal RA-17: Help needed!
Quote:
Al / G8DLH |
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15th Jul 2006, 12:19 pm | #24 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Re: Racal RA-17: Help needed!
Re: fixing my Racal RA-17.
I am pleased to report that my RA-17 is now OK Thanks to everyone who made constructive input. The drift of this Post is now completely OT. Therefore, may I suggest it is closed now and the "how to fix" bits are safely stored in Archive ? The sub-topic of sweeping SGs could be developed further: obviously in a new Thread. BTW I am NOT trying to do an Administrator's job here! I am simply trying to contribute, since I started this Thread. Rgds. Al / G8DLH |