#863

Long shot, but - If anyone has in their junkbox, a 3K ohm linear taper, chassis mount (standard 3/8 bushing and 1/4 shaft), but shaft needs to be at least 1.5 inches long , I will take it off your hands.? This Drake 2-C I'm refurbing has no sound until I hit about 2/3 scale, and then it is way too loud.? Have to use the RF gain for volume.

I took the pot apart, and the first 2/3 of the carbon trace is completely GONE.

These seem to be hard to come by these days, as I have been searching parts suppliers and surplus sites for a couple hours. Seems like an unusual value for a pot, but I guess Drake used them more than once.?? I probably will get as close as I can with a substitute if no luck, but thought I would ask first.

Brian

#864

I have a 10 k pot that fits your size requirements.? Probably better than nothing.

Joe

Show quoted text

On Mon, Jul 31, 2023 at 10:21?PM Brian Donovan - K2AS <k2as@...> wrote:

Long shot, but - If anyone has in their junkbox, a 3K ohm linear taper,
chassis mount (standard 3/8 bushing and 1/4 shaft), but shaft needs to
be at least 1.5 inches long , I will take it off your hands.? This Drake
2-C I'm refurbing has no sound until I hit about 2/3 scale, and then it
is way too loud.? Have to use the RF gain for volume.

I took the pot apart, and the first 2/3 of the carbon trace is
completely GONE.

These seem to be hard to come by these days, as I have been searching
parts suppliers and surplus sites for a couple hours. Seems like an
unusual value for a pot, but I guess Drake used them more than once.?? I
probably will get as close as I can with a substitute if no luck, but
thought I would ask first.

Brian

Kramer

#865

开云体育

Put a 10K resister in parallel to the pot and you’ll be pretty close.

?

Dusty

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Joe Rowe
Sent: Tuesday, August 1, 2023 8:51 PM
To: [email protected]
Subject: Re: [xarc] Looking for Potentiometer

?

I have a 10 k pot that fits your size requirements.? Probably better than nothing.

?

Joe

?

On Mon, Jul 31, 2023 at 10:21?PM Brian Donovan - K2AS <k2as@...> wrote:

Long shot, but - If anyone has in their junkbox, a 3K ohm linear taper,
chassis mount (standard 3/8 bushing and 1/4 shaft), but shaft needs to
be at least 1.5 inches long , I will take it off your hands.? This Drake
2-C I'm refurbing has no sound until I hit about 2/3 scale, and then it
is way too loud.? Have to use the RF gain for volume.

I took the pot apart, and the first 2/3 of the carbon trace is
completely GONE.

These seem to be hard to come by these days, as I have been searching
parts suppliers and surplus sites for a couple hours. Seems like an
unusual value for a pot, but I guess Drake used them more than once.?? I
probably will get as close as I can with a substitute if no luck, but
thought I would ask first.

Brian

Virus-free.

#866

开云体育

Thanks Joe, but I have a couple of options already for substitutes in the 5K range.? I also found a short shaft 3K ohm that I might try to swap the longer shaft and wiper with.? Both are CTS pots, so it might work.

Thanks again for looking!? I had a couple of 20K, but getting pretty far from the design value and might really narrow my usuable range or worse.? Then again, the RF Gain is 10K, but initial check seems OK, maybe a bit noisy.? We'll see.

I've got a cap kit on the way from Hayseed hamfest.? The rig is working (other than AF gain), but at 52 years old, capacitors are probably at or close to failure, and don't want to damage things like power transformer.

73,

Brian

On 8/1/2023 8:51 PM, Joe Rowe wrote:

Show quoted text

I have a 10 k pot that fits your size requirements.? Probably better than nothing.

Joe

On Mon, Jul 31, 2023 at 10:21?PM Brian Donovan - K2AS <k2as@...> wrote:

Long shot, but - If anyone has in their junkbox, a 3K ohm linear taper,
chassis mount (standard 3/8 bushing and 1/4 shaft), but shaft needs to
be at least 1.5 inches long , I will take it off your hands.? This Drake
2-C I'm refurbing has no sound until I hit about 2/3 scale, and then it
is way too loud.? Have to use the RF gain for volume.

I took the pot apart, and the first 2/3 of the carbon trace is
completely GONE.

These seem to be hard to come by these days, as I have been searching
parts suppliers and surplus sites for a couple hours. Seems like an
unusual value for a pot, but I guess Drake used them more than once.?? I
probably will get as close as I can with a substitute if no luck, but
thought I would ask first.

Brian