02-03-2018, 09:17 PM
Here is the brochure for the built version of the Jason JTV:
It had an apparent date of 1958 September, so I’d say it was the original issue.
And here is the brochure for the Jasonkit range, with apparent date 1958 August:
The Jasonkit JTV was included, but not under its definitive model name. Rather it was described as the “Switched FMT/TV Sound Tuner”.
It looks as if the decision to use the “JTV” name for both the Jason and Jasonkit versions was made a little later on.
In that vein, the “Fringe F.M. Tuner” listed was not the original version, but what was later designated as the Jasonkit FMT3. The “tells” are the fact that it was described both as having variable AFC, and being self-powered. The original fringe area circuit had neither of these features. I think it was a few months later that Jason started using the FMT3 designation for this Jasonkit model, at the same time adopting the Jasonkit FMT1 name for the “Standard F.M. Tuner”, and adding the Jasonkit FMT2 as an in-between model. But the Jason FMT3 name was used for the built version of the new fringe area tuner, a contemporary of the JTV, from the start.
That Jasonkit brochure also previewed the forthcoming Jasonkit instrument range.
Re the use of a modified Fireball front end in the Jason/Jasonkit JTV2, I think we have established that it was not chosen for its compactness, as there would have been room on the chassis to mount a standard turret-type tuner. On the other hand, it probably was essential for the Jason Monitor and Jasonkit Mercury 2 models, both very compact units. For the most part, these shared the JTV2 circuit. One may infer that Jason was looking to rationalize its tuner range, with all switch-tuned models being of the FM-TV sound type, no FM-only versions. Effectively the Monitor replaced the Jason Prefect, with an “upgrade” from local area to fringe area performance, and the Mercury 2 replaced the Jasonkit Mercury. One could also argue that the Jason JTV2, as well as being the successor to the Jason JTV, was also the logical replacement for the Jason FMS2.
Cheers,
Steve
It had an apparent date of 1958 September, so I’d say it was the original issue.
And here is the brochure for the Jasonkit range, with apparent date 1958 August:
The Jasonkit JTV was included, but not under its definitive model name. Rather it was described as the “Switched FMT/TV Sound Tuner”.
It looks as if the decision to use the “JTV” name for both the Jason and Jasonkit versions was made a little later on.
In that vein, the “Fringe F.M. Tuner” listed was not the original version, but what was later designated as the Jasonkit FMT3. The “tells” are the fact that it was described both as having variable AFC, and being self-powered. The original fringe area circuit had neither of these features. I think it was a few months later that Jason started using the FMT3 designation for this Jasonkit model, at the same time adopting the Jasonkit FMT1 name for the “Standard F.M. Tuner”, and adding the Jasonkit FMT2 as an in-between model. But the Jason FMT3 name was used for the built version of the new fringe area tuner, a contemporary of the JTV, from the start.
That Jasonkit brochure also previewed the forthcoming Jasonkit instrument range.
Re the use of a modified Fireball front end in the Jason/Jasonkit JTV2, I think we have established that it was not chosen for its compactness, as there would have been room on the chassis to mount a standard turret-type tuner. On the other hand, it probably was essential for the Jason Monitor and Jasonkit Mercury 2 models, both very compact units. For the most part, these shared the JTV2 circuit. One may infer that Jason was looking to rationalize its tuner range, with all switch-tuned models being of the FM-TV sound type, no FM-only versions. Effectively the Monitor replaced the Jason Prefect, with an “upgrade” from local area to fringe area performance, and the Mercury 2 replaced the Jasonkit Mercury. One could also argue that the Jason JTV2, as well as being the successor to the Jason JTV, was also the logical replacement for the Jason FMS2.
Cheers,
Steve
