The 12AX7 has a much higher gain to it and modulates much better. This was a standard back in the DAY (45 Years ago) probably before you were born. Try it on...
8500
Patrick
xxjoker21xx
Jul 21, 2012 12:08 pm
Thanks for the info I'm going to try it after I clean it.should make a good one its already got the 23ch kit on it...
8502
Ken Hamilton
disciple177
Jul 26, 2012 3:11 am
it might be a small difference in the tube specs between the 6BQ5's and the 7189, but in the radio??? all the difference in the world...on RX and TX all the...
8503
Bill
fxbill@att.net
Jul 26, 2012 3:11 am
The Russian sub for the 7189 is actually quite good and better than 7189s in many cases. I'm on several audio forums as well and we use them as well as the 6L6...
8504
Mykel USA
locomikes
Jul 29, 2012 5:17 pm
Try a 12AT7 for the 12AU7 as the gain higher & not as intense as the 12AX7 ... From: Bill <spfxbill@...> Subject: Re: [Tube Type CB Radio Collectors] Re:...
8505
mag2020003
Jul 30, 2012 4:42 pm
When you guys say the compressor do you mean the audio clipper/filters? I have been considering removing it to get more audio and modulation....Right? I...
8506
William Cobb
fxbill@att.net
Jul 30, 2012 5:07 pm
The Black Cat JB12 is actually a modulating linear. It had a single 6BQ5 and put out about 75 watts, but with an adjustable dead key of anywhere between 5-15...
8507
Master Chief
masterchief.973@...
Jul 30, 2012 5:13 pm
The JB12 is an amp, but no where near "linear". ... and put out about 75 watts, but with an adjustable dead key of anywhere between 5-15 watts. Yes, it was a...
8508
mag2020003
Jul 30, 2012 5:38 pm
Hey guys am trying to fix it before I ship it to Mike the repair tech in california so please someone point me in the right direction ? Recently have been...
8509
mike
cbsupertech
Jul 30, 2012 6:43 pm
Hi mag2020003! I had a late session on the Tech bech last nite, so I'm off to a late start today:) Drinking my cup of morning coffee, I read your posting about...
8510
William Cobb
fxbill@att.net
Jul 30, 2012 7:06 pm
No..... It is not supposed to be "linear". The problem is that almost every "linear" amp made is not, in fact, linear. If it was, a radio that had modulation...
8511
w9nfl
Aug 1, 2012 10:48 pm
HI, Does anyone have one of the USL Contact radios for sale? Thanks, Keith...
8512
Mykel USA
locomikes
Aug 2, 2012 8:07 pm
I have two excellent condition USL Contact 23's for sale. I have owned them since the early 60's. These are both overhauled with all good tubes & all good...
8513
browningtram
Aug 3, 2012 3:34 am
I did not have good results with the russian 7189 tubes in CB radios. Never tried the rusky 6l6's. I do really like the rusky 4cx800's though, almost...
8514
Bill
fxbill@att.net
Aug 3, 2012 3:51 am
The Russian 6L6s are awesome and I've replaced $100 Goove Tube units with them in guitar amps for a shop nearby and they can't tell the difference and the...
8515
browningtram
Aug 3, 2012 3:55 am
Most linear amplifiers are linear (or near). however, the problem is almost all CB'ers over drive them. This is what causes the high dead key, backwards mod,...
8516
Bill
fxbill@att.net
Aug 3, 2012 5:07 am
Hi Mac, Believe it or not I can actually hear my JB200 resonating through the coils in my waffle iron! Even though it's of much lower power than the Henry's 2K...
8517
Bizzness
barbedwirehurts
Aug 5, 2012 11:14 pm
... I was able to acquire a CB88 on Ebay, I should be receiving it by the end of this week (I too will soon have a D201) and I can try to scan it to you and...
8518
Bizzness
barbedwirehurts
Aug 5, 2012 11:18 pm
I was wondering if any of the members would like a scan of the Sams Photofact for the Regency Imperial SSB-DSB I could post it ot the files section of this...
8519
Bizzness
barbedwirehurts
Aug 5, 2012 11:22 pm
... Also, I am in the Medford, Mass Area........
8520
Mykel USA
locomikes
Aug 6, 2012 12:03 am
Please do post it in the files section as I could use it. ... From: Bizzness <lnytns@...> Subject: [Tube Type CB Radio Collectors] Regency Imperial To:...
8521
Bill
fxbill@att.net
Aug 6, 2012 12:34 am
8522
Fred Olsen
fwolsen
Aug 6, 2012 1:28 am
Just to clarify this for all concerned. Sams CB-88 includes the Tram D201. Sams did not cover the D201A. This per the 2002 Sams printed index, the last one,...
Please post it and let us know when it is available....
8525
tramdr
Aug 8, 2012 2:22 am
I got mine off Ebay a few years ago, don't know their origins. They needed more voltage and more drive than the weak 6bq5/7189's they replaced. They also where...
8526
tramdr
Aug 8, 2012 2:28 am
I don't believe you, but in reference to the JB-2000, all it is is a overvolted Heathkit sb-220 driven by an internal overvolted 6ca7 which is setup like a...
8527
Bill
fxbill@att.net
Aug 8, 2012 3:37 am
As a non believer then try it sometime. Take a waffle iron, put it within 20 fy of your amp with the lid open. The coils in the waffle iron will act just like...
8528
Bill
fxbill@att.net
Aug 8, 2012 3:50 am
I can't imagine a JB-76 having enough drive to get full output from any twin 3-500Z amp. The JB-200 dialed down a bit, yes, but 75 watts would seem to limit...
8529
w9nfl
Aug 9, 2012 4:18 pm
I would like to know if you have a price in mind? Thanks, keith...
