[Boatanchors] Need Info on Jackson 648R Tube Tester

[D C *Mac* Macdonald]

I was told by the fellow who has accumulated data on the Jackson 648 

testers that the S can do those but the R cannot (without and adaptor). 
 
Mac 

 

 

 

> From: km1h at jeremy.mv.com
> To: k2gkk at hotmail.com; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Need Info on Jackson 648R Tube Tester
> Date: Mon, 9 Mar 2009 15:58:28 -0400
> 
> Are you sure about the tubes Mac?
> 
> Most of the better testers had a 7 pin socket that will take either. I 
> just checked a 59 and 1625 in my 648S. It also has the 6JB6 style 
> socket.
> 
> Carl
> KM1H
> 
> 
> ----- Original Message ----- 
> From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
> To: "KM1H Carl Huether" <km1h at jeremy.mv.com>; 
> <boatanchors at mailman.qth.net>
> Sent: Monday, March 09, 2009 2:49 PM
> Subject: RE: [Boatanchors] Need Info on Jackson 648R Tube Tester
> 
> 
> 
> Well, Carl, the 648S was recommended but the 
> 648R was what I found and bought on eBay and 
> it came with the powered ( but disconnected) 

> roll chart. There is a small motor to run it, 

> probably DC, that will run it in either direction.
> 
> The drive belt is missing, which should not be 

> any sort of serious trouble, but the lack of the 

> wiring to actually power it is probably a bit more 

> of a problem. It appears that the "power" roll 

> chart was an option only. Pulling the chart 

> housing out of its cubby-hole is not a problem 

> as it is not bolted in. HOWEVER, manually rolling 

> the driven wheel is cumbersome, to say the least. 

>  
> I do have a manual with updated settings on the 

> way from Florida, so I guess it's not a serious 

> difficulty. I'd just like to get the 648R fully back 

> to original working status. 

>  

> I will apparently have to make an adaptor for 

> 7-pin tubes such as 1625 and also for the 9-pin 

> TV sweep tubes such as 6JB6, 6GJ5, etc. 

>  

> 73 - Mac, K2GKK/5 

> Oklahoma City, OK 

> 
> 
> 
> ---- Previous message ---- 
> 
> From: km1h at jeremy.mv.com
> To: k2gkk at hotmail.com; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Need Info on Jackson 648R Tube Tester
> Date: Mon, 9 Mar 2009 14:03:33 -0400
> 
> Powered roll chart? How lazy can you get Mac <g>
> 
> I've got the 648S along with all the obsolete settings on the PC if you
> need them. All 648 Jacksons share the same settings. Cant help with the
> motor circuit BUT the schematic is always stapled to the inside of the
> case. Hopefully it is still there.
> 
> Carl
> KM1H
> 
> 
> 
> ----- Original Message ----- 
> From: "D C *Mac* Macdonald" k2gkk at hotmail.com
> To: boatanchors at mailman.qth.net
> Sent: Monday, March 09, 2009 11:47 AM
> Subject: [Boatanchors] Need Info on Jackson 648R Tube Tester
> 
> I recently purchased the subject tube tester. It has
> a powered test data roll chart, but no wiring exists
> between the 648R itself and the roll chart.
> 
> Does anybody have any info on this?
> 
> 
> Thanks in advance.
> 
> Mac, K2GKK/5
> Oklahoma City
> 
> 
>