Just wrapped up the Spring issue of the MI-QRP Club's T5W and sent it to the printers. Hopefully everyone will receive it before FDIM.
72's.....MIkey, WB8ICN
Installed all the resistors, IC sockets, xtals and diodes today on the dual bander QRP rig from Hendricks QRP Kits today. Will start on cap's and rest tomorrow. The board is a work of art and the install of parts is quite easy...they did a good job on this pcb layout!
Repost from http://wb8icn.wordpress.com/New Project
April 19, 2010 by wb8icn
Just finished inventorying my DC-40A and Weber's Dual Band QRP rigs from Doug Hendricks QRP Kits. Doing the dual band rig first as it looks the most interesting.
My CSM-1 troubleshooting is at a halt for now...can't figure out if it is a cable-wire or switch connection. The problem is not consistent when it comes to touching the affected area. Besides, I need a break and feel like doing a new rig for the summer camping trips.
I am finding that it is harder and harder to come up with a concept or scheme where I can make some prototyping surfaces and have on hand to use for experimenting. My solderless breadboards are nice, but sometimes I wonder if stray capacitance, inductance and Lord only knows what else will be present when going that route. Attaching pads to a chunk of old PCB scrap is OK till you you get in a hurry and the glue has not set long enough. I have an islander drill bit and that is fun, but it is a one time use method.
I haven't dug into this yet, but would it make any difference if I am using a 2N2222a or 2N4401 transistor for the oscillator circuit for my VXO???
Any comments????
72....Mikey, WB8ICN
I was playing with a Super VXO for 80 meters which worked out - had over 70 KHz swing down to 3.500 KHz which was what I was after. So then started working a 40 meter Super VXO. Got it to swing about 25 KHz which was encouraging. I decided to switch the osc circuit and use the one in the VRX-1 which is where I wanted to use this version of Super VXO. Well, the bandpass filter on my VRX-1 has never performed as well as I expected...so decided to pull the BPF and put in a RF Toolkit BPF from Parts & Kits.
Just finished updating my web page: www.qsl.net/wb8icn
Hope to add more info and pictures later this weekend.
Below is my homebrew 40 meter rig with a lot of help from the 4SQRP Club. Sure like all the new kits they are coming out with!!!
Rig as of Dec 12th, 2009
Think I will start building some keyer
kits I have recently acquired. I used my last one "already
built" keyer on my 40 Meter Combo Rig (VRX-1/NS-40 from
www.4sqrp.com). With the upcoming weekend so near, I hope to
get on 40 meters either on 7027 or 7038 KHz. But, back to the keyer
kits...I never realized that having at least one or two build keyers
on-hand is a must if your into homebrewing and especially into
building transmitters.
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