Recordings of 78-RPM Morse Code training records, prepared by the U.S. "Special Service Division, S.O.S., War Department". Manufactured by Allied Record Mfg Co., Hollywood, Calif. (See images of record labels.) There is no date on the recordings but judging by the content ("CORREGIDOR... Get the message through!...") the estimated year of manufacture is probably 1942 or 1943.



The recorded material consists of a code aptitude test, introduction to Morse Code letters and numbers, and training at various speeds up to 16 WPM. There were originally 22 records (44 sides) in the collection but the final one is missing here.



These re-recordings of the original phonograph records have been processed in order to remove some of the disc surface noise.

plus-circle Add Review

comment Reviews

Reviewer: msmarko - favorite favorite favorite favorite favorite - August 27, 2020

Subject: The codes are different for the same letters! I don't get it.

On # 10 Side 5B - Unit II Single (Cont.) - 05:09 it sounds like the letters are coded inconsistently. For example at 00:53 seconds yoke is .... (4 dis) then right after it, at 01:00 minute victor is also .... (4 dis). What gives? - August 27, 2020The codes are different for the same letters! I don't get it.

Reviewer: Kenny Schroeder - favorite favorite favorite favorite favorite - March 31, 2020

Subject: I have something like this. I’ve got a couple of records like this but there from the navy and the date for these are 1951. Really cool - March 31, 2020I have something like this.

Reviewer: Om_Audio - favorite favorite favorite favorite - February 14, 2016

Subject: thanks In response to the comment about the speed discrepancy: all it would take is a record player that rotated at incorrect speed and presto- rated code speeds do not align. Hopefully they were played with a stroboscopic reference player but regardless these are great. Morse is used extensively by ham radio operators myself included. These materials are a great resource. Would be nice to have the last record I hope someone provides it at some point. - February 14, 2016thanks

Reviewer: spdogg - - February 25, 2013

Subject: Basic radio codes I have basic radio codes records 1-12 and 13-22, from the United State Armed Forces Insitute. They came from a relative and I'm looking to see how much they are worth. The records are in great condition whereas the binder is in good condition. Thanks.



SP - February 25, 2013Basic radio codes

Reviewer: GW6WN - favorite favorite favorite favorite favorite - January 21, 2013

Subject: A UK Morse Code Enthusiast This is a great treasure of historical audio & teaching. As useful today as it was way back in 1944!

The only thing I would change (if it were possible) would be a more familiar Phonetic Reference.



The teaching and the code is GREAT!



Thank you to AF2Z for uploading his collection



NOW Then, has anyone got a copy of that final record to complete the collection?? - January 21, 2013A UK Morse Code Enthusiast

Reviewer: elmerjfudd21 - favorite favorite favorite favorite favorite - January 15, 2013

Subject: great files these are great. I am learning code with them now. c bryan should be corrected. cw is used more often then you might think. cw can be heard across the hf, vhf, and uhf bands. cw is one of the few codes allowed by the fcc to ID a voice transmitter. as such it is used to ID most vhf and uhf repeaters. on the hf and even vhf bands you can find simplex cw rag chew as well as world wide cw contesting. and in some cases news broadcasts in cw. it fell in popularity for a long time but it like ax.25 packet radio is widly used for emergency communication opps. - January 15, 2013great files

Reviewer: c bryan - favorite favorite favorite favorite - November 11, 2011

Subject: Good practice - I learned code in the Army, but not from these records. They are machine sent and very crisp. There is no background static or noise - nor music, like it could be copying real code. Hardly anybody uses this antiquated method of communication anymore these days, and one has to keep in practice to take it down. Once Morse was a valuable talent to master; now it's a way to keep one's brain sharp. Hearing this from a speaker is not like having a large rubber-cup headset clamped to your head either. This is just fun to play with for a while. - November 11, 2011Good practice -

Reviewer: aw. Megalon - favorite favorite favorite - August 25, 2009

Subject: Morse code Come to say, though I don't have an interest in Morse code, I was searching for the beeps to make a SOS distress signal for my project. I couldn't find a complete sample so I had to construct one and your collection was my first and last hit.

I'm sure that there are (amateur)sailors that find an interest in knowing these signals. I'm glad you posted this, cheers. - August 25, 2009Morse code