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The P-69-17 is not notably delicate and with the low power of the companion T69-20A transmitter, range would have been considerably less than that of a trendy CB radio. Intended as the companion to the T-69-20A VHF AM transmitter in all "UHF" 2-way methods. These have been used primarily by small cities which didn't want lengthy range or inter-operability with state and county methods. The -SP1 modification used a small round connector on a brief pigtail lead to electrically remote the quantity and squelch controls. The -SP2 modification consists of the -SP1 modification, but also permits trunk mounting of P-69-18 by including a cable connector field (see picture beneath) which permits the receiver to interchange with a Deluxe Line FMR-13V VHF FM receiver and be suitable with an FMTR-30D radio accessory set. The accessory speaker housing was product of molded, thick cardboard and meant to bolt to the automobile entrance headliner space above the rear view mirror. Note that the nameplates are lacking from the entrance of the housing. The photograph under reveals a typical early P-69-18 with a black housing and a red nameplate. Production dates roughly 1939-42. Note that the nameplate is blue relatively than pink as on P-69-13 and P-69-18.

Production dates roughly 1941-49. Somewhat uncommon. Production dates approximately 1939-42. Common. Probably dates from 1943-1944. Rare. Production dates have been roughly 1944-50. It's believed that almost all had been produced in the 1945-49 period. Once manufacturing of the FM tools was in progress, Motorola ceased promotion of AM equipment altogether although it was still being produced and available for purchase for an additional ten years. Captain Bale’s dirigible had plummeted to the sea, and fragments of the structure floated a quarter of a mile away, nonetheless burning intermittently. He was now flying as excessive as he had ever taken the ornithopter up to now; based on the savants he had consulted, Captain Bale’s dirigible was able to little extra. Jedburgh shrugged; with Bale now taken, and doomed to the mercies of the British courts, he discovered that he felt little interest in debating ideals with the man. Jedburgh pulled the ornithopter apart by foremost drive, and was lots of of yards from the dirigible before he could start to ponder.

The trolley gathered pace down the rails, creaking in what seemed to Jedburgh like gratitude because the ornithopter gained raise and relieved it of its load. To every of these questions, Jedburgh shook his head. This head is part No. 1292-118. The management capabilities are simple, besides perhaps for the AUX 1 and AUX 2 buttons. Below is a typical P69-14 management head, moderately clearly a modified automobile radio control head. The photograph beneath exhibits an early P-69-17 with the identical management head as the other Police Cruisers which were crystal managed. The top for the P-69-17A added a toggle swap for squelch between the pilot lamp and the quantity management. The management head is the P-8022 as used on wartime and postwar Deluxe Line FM sets. Control head identical as P-69-thirteen series. Some of the earliest postwar 2-way California Highway Patrol installations began out with a Police Cruiser receiver, and added each Motorola and RCA 39 Megacycle VHF FM transmitters later, within the case of the RCA by modifying the RCA control head to function the P-69-18 Motorola receiver ! The P-8022 control head above was usually used with the "one piece" set up proven above it, however not with the original T-69-20A installations, which used separate control heads for transmitter and receiver.

The one piece TR 20-18 set proven here was utilized by the Tracy, California Fire Department in a hearth engine and was licensed as a police transmitter, into the late 1940's. It comprises a P-69-18 receiver and a T-69-20A transmitter. This appears to have been Motorola's only AM cell transmitter, and is a two piece set through which the facility supply and modulator are in a single case and the RF section in a second. The first Motorola AM mobile transmitter was the T-69-20A. It's a private effort not sponsored by Motorola. Motorola has a brochure for this radio on their webpage as a .pdf file. I'm looking for different examples of previous police radio gear from the 1930's and 1940's - - don't let this tools wind up on the landfill! Old photos present the screen, about the dimensions of a ping-pong paddle, mounted horizontally on insulators above the rear fender.

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