34555Re: [midatlanticretro] trouble finding a few parts
- Feb 24, 2014Ah ok, that's just a load capacitor for a crystal. 22pF is fine there.
Nearly all ceramic disk capacitors have a tolerance of +/- 20% anyway,
and 22pF is well within that range. Just use a 22pF.
On 02/24/2014 06:30 PM, B Degnan wrote:
> You can find 22's but not pF20's as easily.
> ...click on the mod kit link. page 2
> -----Original Message-----
> From: Dave McGuire <Mcguire@...>
> To: midatlanticretro <email@example.com>
> Sent: Mon, Feb 24, 2014 4:52 pm
> Subject: Re: [midatlanticretro] trouble finding a few parts
> On 02/24/2014 04:48 PM, B Degnan wrote:
>> Anyone have for sale, or can point me to a few items?
>> 20 pF ceramic capacitor
> These should be all over the place. I have thousands of 'em in
> surface-mount; I'll see if I've got one in through-hole. If so, I'll
> mail you one.
>> GD510 diode. (is there a substitute?)
> Now this is a different matter. That's a pretty well-known diode and
> it's tough to find. It's a germanium diode, and the circuit *may*
> depend on some of its characteristics. You might get by with something
> like a 1N34A or a 1N60. Can you send me the relevant part of the schematic?
>> I am working to install the Heathkit ETA-3400 expansion unit to a ET3400
>> Trainer. To do this they say one must bump up the processing speed to
>> 4mhz, more RAM, etc. by adding a few modifications to the main unit.
> Dave McGuire, AK4HZ
> New Kensington, PA
Dave McGuire, AK4HZ
New Kensington, PA
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