On May 12, 2024, at 7:54 PM, Jim Shorney via groups.io <jimNU0C@...> wrote:

?
Note, this is for the version 2 predriver. If you have the version one board this does not apply.

On Sun, 12 May 2024 18:52:50 -0500
"Jim Shorney via groups.io" <jimNU0C@...> wrote:

MRF-476 or equivalent.

Also have a look at this if you have not seen it already.



On Sun, 12 May 2024 15:43:08 -0700
"Bill WA2JHS via groups.io" <billjhs@...> wrote:

Hello all…anyone know a sub for the srf2281 pre driver transistors?

73
Bill
Wa2jhs

--

73

-Jim
NU0C

On May 12, 2024, at 7:52 PM, Jim Shorney via groups.io <jimNU0C@...> wrote:

?
MRF-476 or equivalent.

Also have a look at this if you have not seen it already.

On Sun, 12 May 2024 15:43:08 -0700
"Bill WA2JHS via groups.io" <billjhs@...> wrote:

Hello all…anyone know a sub for the srf2281 pre driver transistors?

73
Bill
Wa2jhs

--

73

-Jim
NU0C

On May 10, 2024, at 3:22?PM, Bill Leonard N0CU via groups.io <billincolo73@...> wrote:

?

Nothing close

Bill N0CU

On Fri, May 10, 2024 at 12:41?PM william stevens via <197174stevens=[email protected]> wrote:

Gents

By any chance is there a3rd Ot 58 MHz in that pile of ?xstals?

Bill

WB2UFC

On May 10, 2024, at 1:22?PM, Bill Leonard N0CU via <billincolo73=[email protected]> wrote:

?

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

On Wed, May 8, 2024 at 4:41?PM Steve Johnston via <sbjohnston=[email protected]> wrote:

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 homebrew enthusiasts.? It is especially fun to help people new to the world of vintage technology.??

?

One problem:? I am concerned that I am going to soon run out of old crystals on oddball frequencies that I can rebuild onto useful frequencies.

If you have some old FT-243 or HC-6/U crystals that you can spare, please consider my need.?? If you don't have a plan to use those crystals, let me use them to equip those who need crystals in vintage holders. ?

If you are going to be at the Dayton/Xenia Hamvention in a week or so, bring your crystals along.? I'll be in fleamarket space 9001, right under the tree next to the grandstand.

Otherwise ship them to Steve Johnston, 2309 Tulare St, Fitchburg WI 53711.? I'll be glad to reimburse you for shipping.

Think of it as "crystal recycling".? The best kind of recycling is repair and re-use, after all!


73?? Steve? WD8DAS



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Radio is your best entertainment value.
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On May 10, 2024, at 1:22?PM, Bill Leonard N0CU via groups.io <billincolo73@...> wrote:

?

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

On Wed, May 8, 2024 at 4:41?PM Steve Johnston via <sbjohnston=[email protected]> wrote:

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 homebrew enthusiasts.? It is especially fun to help people new to the world of vintage technology.??

?

One problem:? I am concerned that I am going to soon run out of old crystals on oddball frequencies that I can rebuild onto useful frequencies.

If you have some old FT-243 or HC-6/U crystals that you can spare, please consider my need.?? If you don't have a plan to use those crystals, let me use them to equip those who need crystals in vintage holders. ?

If you are going to be at the Dayton/Xenia Hamvention in a week or so, bring your crystals along.? I'll be in fleamarket space 9001, right under the tree next to the grandstand.

Otherwise ship them to Steve Johnston, 2309 Tulare St, Fitchburg WI 53711.? I'll be glad to reimburse you for shipping.

Think of it as "crystal recycling".? The best kind of recycling is repair and re-use, after all!


73?? Steve? WD8DAS



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Radio is your best entertainment value.
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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 not keen on pulling it out and opening it up. :) I think one of the other group members still has one in the process of repair. Maybe he can help.

73

-Jim
NU0C

On Fri, 10 May 2024 07:18:31 -0700
"Karl du Roi, DK7AL via groups.io" <dk7al@...> wrote:

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 described entirely. Would you help me regarding these two matters, please?

Best regards.
Karl, DK7AL