That's an interesting observation, Allen!
I hadn't thought of the possibility of TAE, Inc. considering a practicable retrofit for electrical amplification for their earlier Phonographs; but why not?
However, I doubt it was acted upon, at least from my perspective.
By mid 1929 (and presumably much earlier), the company was quite busy assessing operations for closure that weren't fruitful, and finally pursuing the realm of electronics in the form of Radio-Phonographs, as opposed to increased efforts to expand the realm of their Disc-only Phonographs (obviously the P-1 and P-2 portables were exceptions to my hypothesis).
An interesting correspondence, that supports my theory (dated October 12, 1929) is from Arthur L. Walsh (then Phonograph Division VP) to Charles Edison (President of TAE, Inc.); in which he includes a breakdown of figures showing that the company had sustained a net loss of $1.33 million over the preceding 5 years of record production.*
Certainly this provides us with a real glimpse into the severity of the terminal illness being experienced by the Phonograph Division.
That being said, in Frow (...Disc Phonographs and...) on pg. 87, he speaks of an electrical pick-up "head" invented by Charles Edison for Radio-Phonographs in 1928;
presumably, and in my opinion
only, this probably would have prompted at least the
idea of marketing something similar to accomodate the playing of both lateral and Hill & Dale (especially those electrically recorded?) formats electrically on their older models. To me that seems entirely plausible, and a semi-practical consideration.
It seems, however, that this device may have only been used in the construction of their Radio-Phonographs.
Now, going back to the correspondence I noted above, Walsh stated in his notes that one possible "advantage" to remaining in the record business was:
5. Possibility of Record Business being reborn, if Combinations [emphasis mine] become increasingly popular.
Walsh also makes a notation in the "Disadvantages" category of staying in the record business as:
3. Unfavorable situation regarding portables, which we do not manufacture, but buy and sell at a book loss merely to help sales of records.
It doesn't seem likely to me that the company would be interested in the prospect of the same exact situation in regard to marketing
anything else that might fail to generate much needed income.
We all know how this eventually played out: with the elimination of the entertainment Phonograph Division forever.
Not that I've "seen it all"; that's not at all remotely what I'm suggesting!
I'm just trying to keep the conversation alive, so that new information might surface, and I (we) can learn.
Best,
Fran
* Courtesy
The Edison National Historic Site (contained within the collection of: "DISCONTINUING RECORD PRODUCTION" (1929) - DOCUMENTS FROM THE FINAL DAYS OF EDISON'S PHONOGRAPH DIVISION) found here:
http://www.mainspringpress.com/edison_d ... nuing.html