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Re: AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding
Tnx
By william stevens <197174stevens@...> · #77636 ·
Re: AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding
Nothing close Bill N0CU <197174stevens@...> wrote:
By Bill Leonard N0CU · #77635 ·
Re: AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding
Gents By any chance is there a3rd Ot 58 MHz in that pile of xstals? Bill WB2UFC
By william stevens <197174stevens@...> · #77634 ·
Re: AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding
Steve, I gathered up eleven HC-6 crystals and about 70 other crystals of various styles. I will get them in the mail to you next week. Hope this helps. Bill N0CU [email protected]> wrote:
By Bill Leonard N0CU · #77633 ·
Re: RV75 digital schematic updated
Thank you Jim, this is not an urgent matter, only for clarification and knowledge obtaining. I hope, someone could give me the right answer in the next couple of days/weeks. Best regards. Karl, DK7AL
By Karl du Roi, DK7AL · #77632 ·
Re: RV75 digital schematic updated
That is all that was provided in the manual and there was never a formal service manual published that I know of. Sorry, I don't have any photos of that area. Mine is in active use right now so I am
By Jim Shorney · #77631 ·
Re: RV75 digital schematic updated
Jim, I was looking in your schematic after the function knob and the connector block to the TR7, but unfortunately? I couldn't find anything or a sub-schematic where the wiring of these parts are
By Karl du Roi, DK7AL · #77630 ·
AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding
AF4K Crystals needs old FT-243 and HC-6/U crystals for rebuilding Thank you to everyone who has supported the new AF4K Crystals.? I really enjoying supplying FT-243 and HC-6/U crystals to vintage and
By Steve Johnston, WD8DAS · #77629 ·
Re: Wanted: Cabinets
I will look at Dayton for you. Neved know what I might find. Eric K8cca wrote:
By K8CCA · #77628 ·
Re: Wanted: Cabinets
Still looking for L-4B and L7 for parts. Chuck
By aa5wg · #77627 ·
Re: Wafer Switch Naming
Everything I have ever seen had the ¡°A¡± or ¡°1¡± wafer at the front panel end of the switch. Gary W0DVN
By Gary Follett · #77626 ·
Re: L4/L4B/L7 power switch alternative
What is a little odd about these switches is the manufacturer appears to have used a generic DPDT switch body to make a dual channel SPDT switch by modifying the rocker assembly. Apparently there
By Jim Shorney · #77625 ·
Re: Drake L4-B no Grid Current.
How much are you getting out? What do you see on your metering? Grid current and HV for your power output? What is the input SWR? How are you tuning up? Does it act the same on all bands? I think the
By Jim Shorney · #77624 ·
Re: L4/L4B/L7 power switch alternative
When Drake ran out of the original switches, all they could get for replacement purposes was the white colored ones.
By Evan · #77623 ·
Re: Drake L4-B no Grid Current.
Jim, thank you for the reply. I agree I should do a meter recalibration. But It was working, and now i am getting low power out. If anyone else have some suggestions of what i should look at? Is this
By Jake KE8VGU · #77622 ·
Re: L4/L4B/L7 power switch alternative
I have a simple solution for the power switch. While I have replaced the back end of the switch and I have a spare kit I got from Nationwide Radio, KE9PQ. I leave the power switch on all the time. My
By Stan Gammons · #77621 ·
Re: L4/L4B/L7 power switch alternative
Regardless of the amount of ¡°leakage¡±, it becomes irrelevant when one considers safety concerns, which dictate that any high voltage amp or power supply should be disconnected from the AC line and
By Gary Follett · #77620 ·
Re: L4/L4B/L7 power switch alternative
Hi Steve, Yesterday, I finished rewiring the? Loudenboomer PSU ( L-4B transformer) from 120 to 240AC using 2 SSR's. I know they have a little leakage but it really isn't much. Just now, I measured
By Rick W4XA <myr748@...> · #77619 ·
Re: L4/L4B/L7 power switch alternative
Hello all, I use these solid state relays, as well, and they are great! One thing to be aware of I'm told, as I've never experienced it myself, there is a small amount of leakage thru the switching
By Steve Bookout, NR4M · #77618 ·
Re: Wafer Switch Naming
So "A" is closest to the metal panel? I have an ulterior motive. Another "old radio" project. It's a Collins KWM-2. I made up a circuit to fix its abysmal CW support. That little board mounts behind
By jerry-KF6VB · #77617 ·