Re: crystal receiver at HF

---------

From: George, W5YR (w5yr@att.net)
Date: Thu Jan 10 2002 - 20:59:51 CST


Back in the 40's, I had a homebrew (by me) Field Strngth Meter that I used
with about a 3 foot rod antenna. Besides its normal uses, I could work a
neighboring ham about 4 miles away on 75 phone! We each were running only
about 250 watts *input* so that was doing a fair job. The meter incidently
used that very first Sylvania "semiconductor diode" that they brought out
after WW2. Think it was a 1N34 . . .

72/73/oo, George W5YR - the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
Amateur Radio W5YR, in the 56th year and it just keeps getting better!
QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771
Icom IC-756PRO #02121 Kachina #91900556 IC-765 #02437

All outgoing email virus-checked by Norton Anti-Virus 2002

Stuart Rohre wrote:

> I have a crystal set for HF, also. It is an Army surplus Field Strength
> Meter. Sometimes on 40m, I can hear some weak signals using high impedance
> army headphones. However, it is not a viable Short Wave set,as it is not
> selective enough, and it will not provide a BFO function for CW.


Search QRP-L Archives

[ QRP-L Archive | ]
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 ]

---------

This archive was generated by hypermail 2b29 on Thu Feb 07 2002 - 08:03:45 CST

kd4ab@kd4ab.org