Subj : Re: Storage
To   : Ed Vance
From : Holger Granholm
Date : Wed Jul 02 2014 09:38 pm

In a message dated 06-30-14, Ed Vance said to Holger Granholm:

GE Ed,

It has been a busy day today so that's why I continue with echo mail now

Also we had a taste of summer with 17ø C so I made a 10 km scandinavian
walk dressed in shorts and shortsleeved shirt.

For tomorrow we have varying forecasts between 14ø and 21ø in the
afternoon so the meteos have covered themselves, hi.

 EV> I suppose I could give it a "Smoke Test" by loading it in the
 EV> Heathkit Cantenna.

 HG> Yeah, do that and you'll get back to the dawn of digital
 HG> communications.

EV> While I was searching for the HEATHKIT Catalog I flipped the Power
EV> Switch and the Filament Switch on the TS-520S to ON.

EV> After finding that 1967 catalog I loaded up the XCVR to the
EV> Cantenna.

EV> It dipped to 200 ma CW in the IP Meter Position and I didn't SEE or
EV> SMELL any Smoke in the Ham Shack.

To make the smoke test you don't even have to connect a dummy load.
The HV is normally highest while the transceiver is idling because the
HV is there all the time while the final tubes are only cut-off by the
grid bias.

You was lucky that no smoke emerged but don't feel safe yet. It may come
next time you switch on the transceiver. Normally, starting up old tubes
you should let only the filaments on (at reduced voltage ) fopr several
hours to burn away the gases that have leaked in because the glass seals
for the tube element wires are not air tight.

Then switch on the HV while feeding a reduced (via a variac) mains
voltage to the transmitter to let the electrolytics recover from a long
hiatus. After that the mains supply voltage may be slowly increased
while smelling for smoke or listening for arcing.


EV> 73
EV> NNNN

EV> ... The real problem with hunting elephants is carrying the decoys
EV> --- MultiMail/MS-DOS v0.49
EV> --- SBBSecho 2.12-Linux
EV>  * Origin: telnet & http://cco.ath.cx - Dial-Up: 502-875-8938
EV> (1:2320/105.1)


CU L8ER, Sam, OH0NC

Holger
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