Re: SG5030 and SG504 leveling heads

Melvin Gleep
 

Hi David,

Can you send me a scan of your hand written schematic? It will no doubt save me some reverse engineering work.

Thanks,
Melvin

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Von: Melvin Gleep<mailto:mgleep2@...>
Gesendet: Sonntag, 5. Januar 2020 12:25
An: TekScopes@groups.io<mailto:TekScopes@groups.io>
Betreff: Re: [TekScopes] SG5030 and SG504 leveling heads

Thanks David. I had already read your write-up. It gives me afighting Chance.

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Von: David C. Partridge<mailto:@perdrix>
Gesendet: Sonntag, 5. Januar 2020 12:07
An: TekScopes@groups.io<mailto:TekScopes@groups.io>
Betreff: Re: [TekScopes] SG5030 and SG504 leveling heads

Indeed and finding a modern replacement for those latching relays isn't easy! I looked at making an SG5030 head replacement, but no-one at the time had a dead levelling head and I also hadn't got an SG5030 to test against.

Could I do one - yes. If you want to use anything from the original SG504 head design you'll find the write up on my website:

<http://perdrix.co.uk/SG504Head/index.htm>

If you do go down that route I have hand drawn schematic from the original designer that shows a few component value changes from mine.

David

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Egge Siert
Sent: 05 January 2020 08:31
To: TekScopes@groups.io
Subject: Re: [TekScopes] SG5030 and SG504 leveling heads

Hi Melvin,

Maybe you allready know? Out of some private correspondence with another TekScopes member:

" NOOT: the 015-2350-01 SG5030 Leveling Head has indeed the same RF switches as the earlier mentioned CG's and DC's. Also it has the same Hybrid as used in the SG504 Leveling Head. "

Greetings,

Egge Siert

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