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 Post subject: Heathkit DR-1 manual/schematic
PostPosted: Mar Sun 04, 2018 5:07 pm 
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Joined: Mar Sun 04, 2018 4:59 pm
Posts: 1
Hi folks. First time poster!

I picked up a Heathkit DR-1 decade resistance box and I'm in search of a copy (PDF is fine) of the original manual and/or schematic. There's nothing available online unless I want to pay $10, which I might wind up doing but I figured I'd see if anyone had a copy first.

The main bit of info I'm after is the watt rating of the resistors used in this model. The resistors are original to the unit and have all other markings on them, but no color coding. They're too large to be 1/2W and I could try to make an educated guess based on size, but I'd rather see the documentation if it's available somewhere.

Any suggestions?


 Post subject: Re: Heathkit DR-1 manual/schematic
PostPosted: Mar Sun 04, 2018 8:43 pm 

Joined: Jan Thu 01, 1970 1:00 am
Posts: 11271
Location: North of Mpls, Minnesota
This may help you, just remember this is not a resistor sub box. A decade resistor is used in very low current applications.


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