Re: More testing on PA
¿ªÔÆÌåÓýI have four of the PA kits built here and I get a gain fluctuation of +0.2/-0.8 from 1-54 Mhz inclusive after a little tuning of the capacitor across the T3 primary.? You might check to make sure you got the right numbers of turns on T1, T2, and T3¡ More than one person has had trouble with that. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of Tim via groups.io
Sent: Thursday, April 3, 2025 7:46 PM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] More testing on PA ? On Wed, Apr 2, 2025 at 07:48 AM, K9HZ wrote: Dr. Bill Playing with compensation caps around 180-220 flattens out from 3-30Mhz I can't seem to get much gain past 35-40Mhz Still playing not that interested in 6M qrp? so not a big deal. ? Just curious on how Paul got his so flat out to 50Mhz. Tim? ? ? |
K9HZ