[TenTec] Titan II with Russian 4CX1600 - dd response to grid voltage

[Wes Attaway (N5WA)]

Do you know that the tube is good?

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Wes Attaway (N5WA)
(318) 393-3289 - Shreveport, LA
Computer/Cellphone Forensics
AttawayForensics.com
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-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Dukes HiFi
Sent: Friday, April 28, 2017 10:11 PM
To: Discussion of Ten-Tec Equipment
Subject: [TenTec] Titan II with Russian 4CX1600 - dd response to grid
voltage

I have a Titan II, with a just-completed Russian 4CX1600 tube installation.

It generally works, produces significant output.

However, even at standby the plate current is about 600 mA and DROPS
slightly when I key the amp.

The amp IS keying properly as I can hear the relay.

Screen current remains within limits when driven to about 1000 watts output.

So does the grid current.

Grid voltage in standby is ~-100 V, ~-60 when keyed.
Screen voltage is always 300 Volts when in Operate mode, keyed or unkeyed.

Anyone seen this happen before?

Gary

W0DVN


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