[600MRG] WD2XSH/6 transmitter failure

[Edward R Cole]

I use a short section of RG213 as tuning cap on my 6m yagis.  It has 
a modified gamma match.  I use poly RG59 for HV cable on my 8877 
amp.  I run 4.3 kV. I believe RG-59 is rated for 5kV.  Don't try that 
with foam core RG-58/59.

I will be mowing the lawn under the inverted-L for the last time this 
season in about a week.  Then the radials will be rolled out on the 
lawn for the winter 600m season.  Haven't tested the 100w NDB xmtr so 
that may need some TLC.  We are starting our Fall with leaves turning 
and falling.  Wx has been very rainy.

73, Ed/45

At 06:52 AM 9/7/2013, dave.riley3 wrote:
>add:
>
>RG8 is about 17 pf per foot ( styrene type ), so pre figure length 
>and then some, connect, then clip to tune ( with power OFF fer sure )...
>Use both connections at one end, other ends open, not connected for EZ cut...
>
>With power off, tune final tuning cap with good load on final to see 
>minimum final grid current change...
>Yes, driver connected and hot, final HV OFF, this will let you tune 
>neutralization real fine in safety...
>
>
>
>On 9/7/2013 10:44 AM, dave.riley3 wrote:
>>Pat,
>>
>>If it's high, HV, try a short piece of RG8U alternately connected 
>>at ends, clip length to needed capacity, or pre measure cap. from 
>>the one that works...
>>
>>The junk pile always has something useful...  Even rg59 if not too hot...
>>
>>Dave at 17
>>
>>
>>On 9/6/2013 10:37 PM, Pat Hamel wrote:
>>>One neutralizing capacitor has arced again in the amp.
>>>The repairs may take a while.
>>>I will be off with the amp for a while.
>>>If the junk box has what I need, it may not be a long time.
>>>If it looks like it will be a while, I will put the exciter back on line.
>>>73,
>>>Pat /6
>>>
>>>
>>>
>>>_______________________________________________
>>>600MRG mailing list
>>>600MRG at w7ekb.com
>>>http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
>>>
>>
>
>
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73, Ed - KL7UW
http://www.kl7uw.com
dubususa at gmail.com
"Kits made by KL7UW"