http://homepage.mac.com/pjfraser/phono/photoalbum233.html
This is the address I used to try and enter the site where I could see the difference in the corners of the bedplate between new and old versions. Does this look correct or is there a mistake in it. I would like to complete the survey and put it to rest but the website keeps telling me that there is no homepage associated with it. Thanks, Bruce ----- Original Message ----- From: "Andrew Baron" <[email protected]> To: "Antique Phonograph List" <[email protected]> Sent: Monday, June 25, 2007 11:50 AM Subject: [Phono-L] Tone modulator lever variant on A-series > Hi Bruce ~ > I wasn't aware that the more common horizontal slide was available on the > A-250. > > I don't actually know one way or the other, but I would have assumed that > the more commonly seen horizontal lever style wasn't used until after the > standardization following the factory fire and would have thought that > this didn't appear until the machine was renamed B-250. > > When you mention having seen later examples of the A-250 with the later > style tone lever, are you sure that these were A and not B series > machines? Anyone out there have an A-250 with a horizontal tone > modulator lever? > > The tone modulator on my later A-250 serial number 13417 is the same as > yours; i.e. it lifts straight up and can be leaned to the left to reduce > interference with the lid. What's interesting about learning that your > serial number 10248 machine also has this feature, is the fact that our > machines are some three-thousand (3,169) numbers apart, and yet they both > have the tone modulator. If the source information that Frow used on the > date of introduction of this feature (November 1914) is correct, and your > machine was made (for example) the first week of November, and mine the > first week of December, and the factory burned on Dec 9, this would tell > us that the production per day of the A-250 was approximately 105 > machines. > > This assumes that the November date of introduction of the modulator > (which is not given in Frow) was near the beginning of the month, and > that the production had achieved 105 machines per day of that one model > by late 1914. > > If this daily output of A-250's matches up more or less with established > data, then we can really pinpoint the date of manufacture of any A-250 > equipped this way to within a week or two in 1914. This also assumes > factory equipped and not retrofitted. > > Does anyone out there have a sense of whether this daily production > quantity is realistic at that time? Any other comments about this? > > Best, > Andy > > > On Jun 25, 2007, at 8:14 AM, bruce78rpm wrote: > >> Hi Andrew, you may be already aware of this, but here goes. I believe >> there were variants of the tone modulator on the A-250, my Model (Serial >> Number 10248) has the control lever which pushes up and down (obviously >> an early design). I have seen other later examples of the A-250 that >> have the improved and much more common tone modulator control that >> slides from left to right. I wonder how long the earlier vertical >> control design lasted? On the earlier design, it has a flexible screw >> attached to the bottom of the control handle so if you raise the handle >> all the way (maximum volume) you can still push the handle out of the >> way to the left, so it won't scrap against a lowered lid. You may want >> to include these two tone control options in your survey. >> >> Best Regards, >> >> Bruce > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org
