TenTec
[Top] [All Lists]

[TenTec] Need Century 21 help...

To: <tentec@contesting.com>
Subject: [TenTec] Need Century 21 help...
From: jdanter@mail.i-america.net (jdanter)
Date: Sat Jun 7 19:02:09 2003
John,
Here are the voltage readings for IC-1, LM3900, the CW filter, on the Audio 
Preamp board.
[Receive, DRIVE fully CCW.]

pin-
1- 0.6 [pin left of notch or dimple on chip]
2- 0.6
3- 0.6
4- 5.5
5- 5.5
6- 0.6
7- 0
8- 0
9- 5.3
10-0.1
11-0.6
12-0.5
13-0.6
14-11.5

The LM3900 chip is very inexpensive, approx $1.00.
Get a socket too. Future replacement will be easier.

73 NE4TT jamie

---
[Pre-scanned for viruses by Internet America.]


<Prev in Thread] Current Thread [Next in Thread>