U-matic keyer

[Bob Groh WA2CKY]

My SA-5010 manual has the following information:
1.  External power supply: 11 to 16 VDC, 200 mA
2.  The power jack doesn't care about polarity.  It uses a
bridge diode arrangement inside
3.  No note made of battery type other than 1.5 VDC
minature.  If needed I could yank the cover off and check.
I probably should anyways - its been a long while and I'm
sure they are dead.

By the way, this is one of Terry Perdue's designs.  Nice
job, Terry.

73
Bob Groh, WA2CKY
Heathkit Engineer, 1977 to 1981


Robert Radmore wrote:
>
> Readers,
>
> I have recently acquired a Heathkit uMATIC KEYER model SA-5010 without any
> documentation. What is the power supply voltage and current requirements?
> Is the center pin of the power receptacle +? I note several small memory
> keep alive batteries on the board inside. What is the number of the battery?
>
> >From a sticker on the bottom marked Heathkit Electronic Center it appears
> this unit was serviced by Heath on 4/27/82.
>
> Thanks for the help.
>
> Bob N2PWP
> Bob Radmore
> Amateur Call - N2PWP
> Packet - N2PWP at KE2VW.#WNY.NY.USA.NOAM
> E-mail - RRADMORE at wzrd.com
>
> Sponsored by the City of Tempe
>
> Listserver Submissions:  heath at listserv.tempe.gov
> Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
> Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"

Sponsored by the City of Tempe 

Listserver Submissions:  heath at listserv.tempe.gov
Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"