wa8yxm
Wherever I happen to park
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Joined: 07/04/2006
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Answer depends on your converter and some other opitons
A good modern converter, Likely not Progressive Dynamics 9100 or 9200, Tested, and the answer is NO I have not tested other makes/models
Some of the older single stage jobs. require either a battery or an optional "Battery Simulator" (Capacitor) If you have one of those, I'd suggest an upgrade to your converter, they kill batteries
Nothin adds excitment like something that is none of your business
John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377
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AO_hitech
SF Bay Area
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Joined: 08/09/2004
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I've heard that the old ones (like mine, 1985) need the battery to filter the converted A/C as the converter has no filtering (like mine). However, mine works just fine without the battery. Apparently old appliances don't mind pulsed DC. 
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bill h
el segundo
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Joined: 08/02/2001
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AO_hitech wrote:I've heard that the old ones (like mine, 1985) need the battery to filter the converted A/C as the converter has no filtering (like mine).
Yup, the more simple chargers are often that way. They use the battery as the capacitor in the traditional LC filter. That is why reading the voltage on some chargers without a load is interesting. 
[auote]However, mine works just fine without the battery. Apparently old appliances don't mind pulsed DC.
I would suspect that some of them might run a little hotter.
Bill and Susan
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wa8yxm
Wherever I happen to park
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It is not "Old ones" it is specific old ones (Magnetec for example) and there is an option as well, Magnetec sold a "Battery Simulator" This is a can, around the size of a pringles potato chip can, that has 2 connections on it.
Electrically it's a capacitor (or if you prefer a condenser) Fairly good size one
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AO_hitech
SF Bay Area
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bill h wrote:I would suspect that some of them might run a little hotter.
Except that my converter is only producing about 11 volts. I think it is corroded replay contacts, but it's low on the list to fix as everything works fine. 
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