Toggle sidebar Toggle sidebar
  • You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Retevis Holidays giveaway winner has been selected! Check Here to see who won!

Help With Repair of "Good Ole' Boy'd" Hr2510.

C

Christopher Hays

New Member
Nov 7, 2015
9
2
3
Long story short, my uncle gave me one of his2510's a few months ago that had been golden screw-drivered to near death and stuck in a box for no telling how many years. Using mostly this site, I've replaced several of the known trouble caps and a couple transistors along with 1 or 2 resistors I believe.

As of yesterday, after replacing c41 and c59, I finally managed to get my signal past my own neighborhood and talk to someone several states over. So I feel like I'm fairly close to having everything as it should be.

Even though my Tx and Rx seem to work a lot better now, I feel like based on what others have said about this radio, it should be a hell of a lot better than it currently is. The next suggestion I've read on here is to check d101 and d102. My d101 needs to be replaced and I'm wondering if the 1n914 is a suitable replacement for the MC301?

Lastly, I can hear a lot better for sure, but I still hear lots of static over people that come in. I'm sort of stuck here, not sure if that would be a radio or antenna problem.
 
Last edited:

Not really; perhaps in a pinch the 1n914 or 1n4148 will work. But the mc301 is a specific part with different parameters and a loss of receive sensitivity will be the result. Wouldn't even use a Schottky in its place - either.

RF Parts carries them; think I gave $3 a pop from them. But they have them, bought from them before. Problem is, they have a minimum purchase of $20 or so. Maybe you can find some on ebay; probably . . .

Roger Bird is the #1 guy for the 2510. But there are other qualified techs out there too. I wouldn't send a radio like that one out to just any schmuck either. Send it to a real tech if you don't have the gear/experience to DIY.
 
Last edited:
  • Like
Reactions: Christopher Hays
I appreciate the response! I have an O-scope, multimeter, cap tester, and some other odd and ends things on hand, but I'm pretty close to the end of my comfort zone here repair wise. Other than simple component testing and soldering work, I'm not real sure what else to look for.

Also been told I sound a hair off frequency on USB, clicking up .001Mhz seems to fix that issue oddly enough though. Also reports of a little humming on my signal from a few guys. I think I just need to stick an insulator behind the finals with new grease as suggested in other posts to fix the humming though.

I clipped my antenna a bit and got the swr down to about 1.5 on the 10m range I can use with my ticket, but I'm thinking the skip is gone for today. Usually about 9:30am to 3:30pm is all it lasts it seems.
 
Last edited:
  • Like
Reactions: Robb
Ok, I'll have a look around and see what else I can get to bump the order up to $20. How about the NTE519? I've seen that suggested as well but no definite answer on if that's an acceptable replacement.
 
I think the NTE # is a ECG553. I wouldn't use just any Schottky diode, as the mc301 is fairly specific; could be wrong. Only needed to replace them once in a radio, but bought a few spares just in case.

You will need a decent quality freq counter, dummy load, and watt meter if you want to do your own radio work including what you already have. A high end sig gen is nice to have; but pricey. I'm just a hobbyist; but ended up repairing and aligning radios for my friends too.

There are a few guys on this forum that do their own radio work, such as exitthirteen, robalo, and many others. Some of use CB Tricks for the service manuals they have there:
http://www.cbtricks.com/radios/index.htm
http://www.cbtricks.com/radios/uniden/hr_2510/index.htm
 
Nah, I'm pretty tired of it not working to fool around with trying to save a couple pennies on a part that "might" work. I just asked about NTE because the rather large electronic store close to me has rows and rows of NTE stuff. Then again gas and shipping would be about even anyway. haha

I'm borrowing an HP 3312a function generator, for some other non-radio projects, if that can be used at all? I've seen a few DIY dummy loads online I could make one of those up, unless you recommend against making one?
 
A dummy load just needs to be accurate throughout it rated power range. Sure, you can make one.

The sig gen needs to have a sine wave output that has a calibrated output and can have the same freq range as the radio you are testing. I use a Hp 8656B - as an example. Goes up to 1.2ghz and can do FM as well.

download.jpg


IIRC, the NTE prefix and the ECG prefix are interchangeable; but not certain.
 
Ahh never mind, I just realized this one only goes up to 13mhz. I'll have a look around to get a better one. I need to buy my own anyway. Should have picked one up at the ham fest last weekend.
 
Yea, other than this diode, I don't really know what else to do here and I'm wondering if maybe my range of 10m is just dead. I'm using a dipole antenna as well. From what I gather, I should obtain a vertical for a better chance at dx'ing.
 
If you want to have it brought back to original or even a little better send it off to Doc. He re-worked a 2510 last year for me and did a great job on it. He re-capped it, new finals, added a micro fan to the heat sink, removed all the glue from the boards, added variable output on the calibration control and changed to the funky power connector to the 3 pin standard like most other CB's and 10 meter radios have.

Here's his info. I know when I spoke to him last year his health wasn't so good so I don't know if he's even accepting work, but you could call him if you want.

Doc's Electronics
248 Doat Street
Buffalo, NY 14211
doc@docselectronics.com

(716)893-2505
 
RatsoW8 said:
If you want to have it brought back to original or even a little better send it off to Doc. He re-worked a 2510 last year for me and did a great job on it. He re-capped it, new finals, added a micro fan to the heat sink, removed all the glue from the boards, added variable output on the calibration control and changed to the funky power connector to the 3 pin standard like most other CB's and 10 meter radios have.

Here's his info. I know when I spoke to him last year his health wasn't so good so I don't know if he's even accepting work, but you could call him if you want.

Doc's Electronics
248 Doat Street
Buffalo, NY 14211
doc@docselectronics.com

(716)893-2505
Click to expand...


What did your 2510 work cost you, I may have my 2 2510's and a 2600 done it it was a fair price. Thanks for his info btw.
 

dxChat
Help Users
  • No one is chatting at the moment.


      Top Bottom