[Heath] HW-10 Shawnee Rebuild Update

[Bill Cromwell]

I had assumed the OP was going by what the voltage and resistance charts 
in the manual call out. I'm sure Heath knew about those components in 
circuits.

73,

Bill  KU8H

On 12/31/2017 08:30 PM, howard holden wrote:
> Resistance readings can also be off (low) if they are paralleled with other resistors in circuit. A check of the schematic should show any parallel components. Capacitors can show leaky if they are paralleled somewhere in the circuit with a resistor.  If you find a reading not what you think it should be you might lift one lead out of the circuit and recheck.
>
> 73 Howie WB2AWQ
>
> Sent from my iPhone
>
>> On Dec 31, 2017, at 3:53 PM, Bill Cromwell <wrcromwell at gmail.com> wrote:
>>
>> Hi,
>>
>> Has anybody asked you what you used to make your measurements? Modern meters - DMMs - present almost no load at all to the circuit under test. The readings listed in manuals for old gear were probably obtained with old style V-O-Ms. Resistance readings shouldn't vary much but voltage readings in energized gear certainly will. Add that difference to the normal variations of tubes, caps and resistors with all of the accumulated tolerances.
>>
>> Good luck with your project. You can always learn from projects like this andafter al the work you will have a working radio:)
>>
>> 73,
>>
>> Bill  KU8H
>>
>>> On 12/30/2017 10:11 PM, Doug & Kathy Davies wrote:
>>> I managed to obtain some really nice braided fishing line and used that
>>> to re-string the tx and rx dials.  It worked very well.
>>>
>>> However, I just discovered a whole lot more problems.  While carrying
>>> out the preliminary ohmeter checks, I found just over half of the checks
>>> turned up incorrect values.  So, I've obviously got a lot greater issues
>>> to deal with than dial string.
>>>
>>> I think I'll put the project aside for a while and re-visit it at a
>>> later date.
>>>
>>> Doug
>>> VE7DRF
>>>
>>>
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>> --
>> bark less - wag more
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-- 
bark less - wag more