3CX800

The Triode Boards

Control and Protection
for your
Triode RF Power Amplifier

Updates for Existing Users

NEW - 

Any questions? Please e-mail address - please update your address book!

3-500Z
 

Since the Triode Board was introduced in 1999, there have been very few revisions or updates. 

If you are an existing Triode Board user, you can update your manual from this page.

Manual Issue No.

Triode Board Issue No.

Changes (where significant)
1.1 onwards

2.4

 NEW - Application Note 5 - increasing bias voltage for the GS31/35. 
Download now (172KB).

1.1, Oct 1999

2.4

  – R24 changed to 3K3 (Note: if you have a 'weak' 4N36, R24 can be increased as high as 10K.)

 – Section 5.5, Building the HV Divider
New paragraph added:
The HV OK output from the divider is also a good point to measure the high voltage. If you are doing this, the voltage at the HV OK output must be less than 12V – otherwise the HV meter will read incorrectly (due to the protection diode D6).

1.0, Sept 1999

2.4 
(first issue)

  First issue
Back to:

1. The Triode Board – Features

2. Ordering Options

3. Tech Notes etc

 

Updated 15 April 2004
Page © 1999-2004 IFWtech Limited. Some graphics © Eimac, Inc.