Minifon P55 wire recorder of the mid 1950s

[N_Cook]

I came across a 1955 advert for one. I cannot find technical details , only
museum exhibits on the web for this early German "Walkman"
Size 1 9/16 x 3 15/16 x 6 11/16 inches , 2 lbs
An amazing 5 hour record time possible with it.
Can anyone direct me to technical details ? I would have thought the LT and
HT batteries and motor of the time would have filled the available space,
and how did the wrist watch microphone work ?

 

[N_Cook]

Scanned in image from the 1956 version of the book in the heading, with
preceeding lines inserted over the top, correction 3 batteries
http://home.graffiti.net/diverse:graffiti.net/minifon.jpg

 

[Harald Wilhelms]

I came across a 1955 advert for one. I cannot find technical details , only
museum exhibits on the web for this early German "Walkman"
Size 1 9/16 x 3 15/16 x 6 11/16 inches , 2 lbs
An amazing 5 hour record time possible with it.
Can anyone direct me to technical details ? I would have thought the LT and
HT batteries and motor of the time would have filled the available space,
and how did the wrist watch microphone work ?

I remember on this company in my Youthtime, because
it was in my Homecity Hannover. May be, you found
something, wenn you call some museums in Hannover.
You will found the adresses in the internet.
Greatings
Harald
PS: Please excuse my bad English. I have not enough
expierence.

 

[N_Cook]

I remember on this company in my Youthtime, because
it was in my Homecity Hannover. May be, you found
something, wenn you call some museums in Hannover.
You will found the adresses in the internet.
Greatings
Harald
PS: Please excuse my bad English. I have not enough
expierence.

Managed to fit 2x DF67 and a DL67 inside, according to
http://www.geocities.com/radioflier.geo/minifon.htm
the only technical info I've found on it

 

[Harald Wilhelms]

Managed to fit 2x DF67 and a  DL67 inside, according tohttp://www.geocities.com/radioflier.geo/minifon.htm
the only technical info I've found on it

Yes, I remember that I saw a similar Unit in a special
"Minifon"- Shop in Hannover more than 40 Years ago.
Also the special watch microphon. I think, you shall try
a phonecall to the "Heimatmuseum" in Hannover. (But
I´m not shure, that the speak english.) Very often there
are special "nostalgic" groups from old companys in
their hometowns and it my be, that they know something
about such groups in the "Heimatmuseum".
Greatings from Brunswiek
Harald

 

[Stefan Heimers]

I came across a 1955 advert for one. I cannot find technical details ,
only museum exhibits on the web for this early German "Walkman"
Size 1 9/16 x 3 15/16 x 6 11/16 inches , 2 lbs
An amazing 5 hour record time possible with it.
Can anyone direct me to technical details ? I would have thought the LT
and HT batteries and motor of the time would have filled the available
space, and how did the wrist watch microphone work ?

http://www.radiomuseum.org/r/protona_minifon_miniphon_p55.html

They do have the schematic diagram, but only for members.

 

[Wolf Drechsel]

I came across a 1955 advert for one. I cannot find technical details , only
museum exhibits on the web for this early German "Walkman"
Size 1 9/16 x 3 15/16 x 6 11/16 inches , 2 lbs
An amazing 5 hour record time possible with it.
Can anyone direct me to technical details ? I would have thought the LT and
HT batteries and motor of the time would have filled the available space,
and how did the wrist watch microphone work ?

Hello,

maybe people at tape recorder forums know more about it. E.g., try
these:

http://mb.abovenet.de/forum/index.php?board=36.0

http://mb.abovenet.de/forum2/

Greetings and good luck,

Wolf