Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 17, 2021 9:20:47 GMT
Can take 7v off the cap In front of the big heatsink. That's what I do. I also put an extra 1k resistor in and it stops the LED beaming! What is the component of the CAP please? I want to avoid any mistakes. 100nf cap in front of the 7805. |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 17, 2021 9:21:56 GMT
Another question, I assume that the loading plugs are kind of in the signal path, so should I also use decent cable here? They are, and yes. Although if like me you don't change carts often, I put the resistor straight into the PCB |
|
|
|
Post by firebottle on May 17, 2021 9:30:15 GMT
The cap is C2P.
Yes use decent cable for the loading plugs, they are in parallel with the signal.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 17, 2021 9:50:53 GMT
Thanks.
|
|
|
|
Post by antonio on May 19, 2021 2:03:49 GMT
I've come on here today expecting a review and photos of the finished article  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 19, 2021 4:26:56 GMT
Rome was not built in a day...
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 13:26:50 GMT
I thought I was about to celebrate....
It has powered up ok. No magic smoke, but there is no difference in the gain between MM and MC.
What have I done wrong?
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 14:05:03 GMT
I thought I was about to celebrate.... It has powered up ok. No magic smoke, but there is no difference in the gain between MM and MC. What have I done wrong? Erm, do the LEDs light when you switch between the two? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 16:22:53 GMT
Yes. But it seems like only MM gain is available.
I can hear the relays clicking in and out.
No distortion, clean sound, just a lack of gain.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 16:45:33 GMT
Crazy theory no.1.
I have fitted the LEDs round the wrong way, so they illuminate in MC mode.
Is this a possible explanation?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 16:55:51 GMT
I think the other option is the multi-get boards are fitted the wrong way round.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 17:05:10 GMT
Crazy theory no.1. I have fitted the LEDs round the wrong way, so they illuminate in MC mode. Is this a possible explanation? They illuminate in MC? Erm....no. not possible as far as I know. |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 17:05:24 GMT
I think the other option is the multi-get boards are fitted the wrong way round. Stick a pic on |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 17:06:39 GMT
Should look like this:  |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 17:07:10 GMT
Christ! Look at that resistor....ALAN 🤣🤣🤣
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 17:26:57 GMT
Should look like this: That will be it then. Mine are pointing the other way round.... Oops. I thought I had it right, based on a picture I saw somewhere. |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 17:28:01 GMT
Should look like this: That will be it then. Be careful taking them out. Those little holes get ruined quiet easily. I'd take the board off the legs personally |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 18:56:11 GMT
🍾
We are in business......
I have in running with the Reflektor 6N2P and the National PCC88 and it already sounds good.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 19:06:19 GMT
Well....
What’s next then?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 22, 2021 19:08:39 GMT
Once this has burnt in, I look forward putting it up against Pinkies beloved PIP.
The PIP (could be a 2) has always impressed me.
I think tonight is going to be a long night though.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 22, 2021 19:31:07 GMT
Once this has burnt in, I look forward putting it up against Pinkies beloved PIP. The PIP (could be a 2) has always impressed me. I think tonight is going to be a long night though. Do keep us updated on any bakoffs etc. We do like to hear about such fun ☺️ |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 23, 2021 6:42:39 GMT
I may have one little job left to do.
The current power switch is illuminated by an Orange LED. To be consistent, I will swap it over for a blue one.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 23, 2021 8:43:51 GMT
I did my first upgrade today.
I changed the basic power cable with a Mark Grant cable I had spare.
|
|
|
|
Post by electronumpty on May 23, 2021 8:47:42 GMT
Great to hear it's up and running, you'll love it.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 23, 2021 13:03:25 GMT
I am reluctant to put the Teles in straight away. I will let things settle in first.
I assume it will burn in quicker if I leave it powered up for a few days.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 23, 2021 13:45:20 GMT
I am reluctant to put the Teles in straight away. I will let things settle in first. I assume it will burn in quicker if I leave it powered up for a few days. Chuck em in!!!! |
|
|
|
Post by firebottle on May 23, 2021 13:45:29 GMT
Best to have a signal playing through it, that's the beauty of having a reverse RIAA box.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,430
|
Post by Bigman80 on May 23, 2021 13:46:32 GMT
Best to have a signal playing through it, that's the beauty of having a reverse RIAA box. Yup! Just play some vinyl with your good valves in and enjoy the journey. |
|
|
|
Post by antonio on May 24, 2021 0:01:51 GMT
If the Tele's are no good, send em to me to be 'disposed' of, I will do it so no glass tubes are hurt in the process.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 24, 2021 8:57:00 GMT
As posted elsewhere, I have checked all my valves this morning.
For the BB3, I currently have:
2x TFK ECC83
1x EI ECC83
1x Raytheon ECC83
2x National PCC88
2x ERA PC88
2x Tunsgram PCC88
I could do with another set or two of PCC88, so will keep an eye out for some TFK at a sensible price.
I do have a foil getter Tunsgram ECC83 on the way as well, so I think I am good on ECC83. I should have enough to see me out.
|
|
