Re: [Amps] Is there any VISIBLE difference of 4CX1000A and 4CX1500B ??

["wc6w@juno.com" <wc6w@juno.com>]

Hi Ulli,
  Look through the fins.

  4CX1000A fins are internally flat.

  4CX1500B fins have small convolutions in each fin.

73 & Good morning,
  Marv WC6W

-- "Ulli Grunow" <ulli@planet.nl> wrote:
Hi there,
Can someone tell me, how to distinguish visually a 4CX1000A from a
4CX1500B from outside ?!?
 
There is no printed label anymore visible. The tube in question is used
and comes from a marine equipment manufacturer DEBEC (Germany)
 
Is there any difference, so that looking on the tube we can definitely
say that it is a 4CX1000A or 4CX1500B ?!
Is there a sinple electrical test probably so we can find out ?
 
Please let me know.
 
Thanks for info.
 
Ulli, ON5KQ
 
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