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Re: WTB: Power Connector in good connection

 

Hey Mike,

Ebay would be your fasted bet. Buy the FP301 power supply w/speaker for $99 or the cable for $65.

Michael


Re: WTB: Power Connector in good connection

 

Hello Mike,

I also purchased a? 301 without the cable (or power supply) in the past.

There used to be a guy on qth.com who sold power cables for various vintage (and not so vintage) radios. I haven't seen the posting from him recently though. A quick check just now, didn't reveal him either. Unusually, ebay also looks dry.. (not a member of qrz, so can't check them).

Last year I ran across someone at a hamfest selling NOS cinch jones 12-pin female (for the 301 and I <think> 101 line). I paid $10 ea. for just the connectors. I am planning on wiring up as needed. Given that it needs 12 ga wire, this assembly gets expensive fast. The connectors have cinch jones / patent molded on them, but the back-shell doesn't. I guess they could still be counterfeit. They do seem to fit snugly on the rig I tested it on and I plan on using as needed. Right now I share one power cable between 2 301's as needed.

I fear the cost of the connector and shipping alone would likely exceed $30 and that's without the cable itself - you would still have to supply wire and build it.

Best wishes locating one.

Jim


Re: No LSB or CW RX

 

That should be LSB crystal¡­.damm spell checker!

On Sun, 6 Aug 2023 at 12:24, Dave smith via <dave.goathland=[email protected]> wrote:
The lab crystal may not be starting reliably¡­.old age¡­.may need to try varying the ?capacitors in its circuit.
Dave.

On Sun, 6 Aug 2023 at 12:14, Fred, N1DEC <fcidalab@...> wrote:
Hi
I have a FT-301D from new.
Lately sometime I use it the LSB setting is dead in RX and TX on all bands
USB is ok AM is ok.
I also think CW is dead in RX but seems ok in TX.
Then another day it works ok.
Where should I start looking?
I cleaned all the plug-in boards and switches.
Thanks
Fred
N1DEC


Re: No LSB or CW RX

 

The lab crystal may not be starting reliably¡­.old age¡­.may need to try varying the ?capacitors in its circuit.
Dave.

On Sun, 6 Aug 2023 at 12:14, Fred, N1DEC <fcidalab@...> wrote:
Hi
I have a FT-301D from new.
Lately sometime I use it the LSB setting is dead in RX and TX on all bands
USB is ok AM is ok.
I also think CW is dead in RX but seems ok in TX.
Then another day it works ok.
Where should I start looking?
I cleaned all the plug-in boards and switches.
Thanks
Fred
N1DEC


No LSB or CW RX

 

Hi
I have a FT-301D from new.
Lately sometime I use it the LSB setting is dead in RX and TX on all bands
USB is ok AM is ok.
I also think CW is dead in RX but seems ok in TX.
Then another day it works ok.
Where should I start looking?
I cleaned all the plug-in boards and switches.
Thanks
Fred
N1DEC


Re: Low Tune power FIX

 

Thanks for sharing this FT-301d restore post.
I have a FT-301 under the workbench that needs restoration
and learning alot from Eric Sorensen's content.

Mike Peace


Re: Low Tune power FIX

 

I have a 500 Hz CW filter that has quit working due to age. It failed to pass the CW Tune signal so I took it out of the FT-301. It is an International Crystals filter.


Re: Low Tune power FIX

 


Re: Low Tune power FIX

 

Where is this blog?


From: "PA7TG" <tjarko.gramsma@...>
To: "Felsummers" <felsummers@...>, "yaesuft301d" <[email protected]>
Sent: Saturday, August 5, 2023 7:28:15 AM
Subject: Re: [yaesuft301d] Low Tune power FIX


Op do 29 jun. 2023 om 22:21 schreef Forest (Gene) Summers <felsummers@...>
I followed this helpful blog, I removed C428 and was able to get 100+ Watts of CW output on my FT-301D. Note: ?After removing C428 from the IF board, it tested 19.8uF on my B&K capacitor check. It is supposed to be 33uF +/- 10%. It has aged but lost value. Before removing C428, I was getting about 5W tune power on 10m, 15W on 15m, 35W on 20m, 30W on 40m and 25W on 75m. Peak SSB power is around 150W all bands.?



Re: Low Tune power FIX

 



Op do 29 jun. 2023 om 22:21 schreef Forest (Gene) Summers <felsummers@...>
I followed this helpful blog, I removed C428 and was able to get 100+ Watts of CW output on my FT-301D. Note: ?After removing C428 from the IF board, it tested 19.8uF on my B&K capacitor check. It is supposed to be 33uF +/- 10%. It has aged but lost value. Before removing C428, I was getting about 5W tune power on 10m, 15W on 15m, 35W on 20m, 30W on 40m and 25W on 75m. Peak SSB power is around 150W all bands.?


WTB: Power Connector in good connection

 

Hello,
I just purchased a rough FT-301 to restore, it's missing the power connector cable.
Anyone have a power connector with cable for sale?
I can pay by Venmo or Zelle.
Shipping to Springfield, Missouri.
Thanks,
Mike Peace


Re: Low Tune power FIX

 

Hi,

Drifting out of spec xtals are typical, Ive had to do the same on others boards as well. This is good input for others trying to fix their FT301s, thanks. There is a company in the Netherlands that has most of the xtals in the 301, Ive purchased a few resurrecting other 301s. CW and SSB filters drift as well since they have xtals inside that have drifted. These filters can be reworked and xtals replaced.

Michael


Low Tune power FIX

 
Edited

I followed this helpful blog, I removed C428 and was able to get 100+ Watts of CW output on my FT-301D. ?Before removing C428, I was getting about 5W tune power on 10m, 15W on 15m, 35W on 20m, 30W on 40m and 25W on 75m. Peak SSB power is around 150W all bands. No CW filter in my unit.


Re: Calibration off by 2.5 khz. need help.

 

you might want to sweep your crystal filters also. I have read on the internet somewhere that they also age and change frequency.

I have to many projects going on and cant give you any other information.


Re: FT301D schematics

 

My manual did have an obvious mistake in the alignment instructions, but in truth I think it was a typo.
D.

On Fri, 13 Jan 2023 at 20:43, Michael K. <michael.kohlstadt@...> wrote:
Hi All,

Has anyone seen manuals that change the calibration procedure based on new versions of boards installed?
Do all manuals have the same calibration instructions. I have older 301Ds with different rev boards than the newer 301Ds. If there are different manual versions could you upload them to this site?

Thanks,
Michael


Re: Calibration off by 2.5 khz. need help.

 

I¡¯ve had the same issues with the USB and LSB xtals had to change caps to get them back inline.
Any one know of a xtal manufacturer that can makes these HC49U. Back in the day I used Jan crystal. I¡¯ve looked around and found Transko down in Anaheim CA but they don¡¯t have any 9 mhz blanks.


FT301D schematics

 

Hi All,

Has anyone seen manuals that change the calibration procedure based on new versions of boards installed?
Do all manuals have the same calibration instructions. I have older 301Ds with different rev boards than the newer 301Ds. If there are different manual versions could you upload them to this site?

Thanks,
Michael


Re: FT 301 lid fixings.

Bob Isselhard
 

This company (Elcon) also sells a complete replacement kit for the FT-301D display in case anyone is interested. ?73, Bob, K5INW?



On Sat, Dec 31, 2022 at 3:53 AM Dave smith <dave.goathland@...> wrote:
Thank you Roland, I will follow that up.
All the seasons best.
¶Ù²¹±¹±ð¡­.³Ò4¶Ù´¡³Ý.


Re: FT 301 lid fixings.

 

Thank you Roland, I will follow that up.
All the seasons best.
¶Ù²¹±¹±ð¡­.³Ò4¶Ù´¡³Ý.


Re: FT 301 lid fixings.

 

You can get them here.
?