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Click on the links above to follow 2E0IYN & G4XRA on their quest to reverse  engineer the world of 1980's radio

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Links to various Manuals and Datasheets used to aid the reverse engineering.

Datasheets

2716 NEC uPD2716 Eprom used to set PLL frequency.
AN829 Panasonic AN829 Dual voltage-controlled attenuator
AT28C16 Atmel AT28C16 Eeprom to be used to replace 2716, so frequencies may be altered.
MC14161B Motorola 4 bit counter, used to stuff data into the Motorola MC145146 PLL
MC145146P Motorola Phased Locked Loop Frequency Synthesizer as used in the[Robin] Radio
ML145146 Lansdale Semiconductor version of the Motorola Phased Locked Loop Frequency Synthesizer - has a bit more info
NJ8812 Plessey Phased Locked Loop Frequency Synthesizer IC as used in the[Ian] Radio
SP8793 Plessey Dual Modulus Prescaler IC (40/41)as used in both [Robin] and [Ian] Radios
TC4069UBP Toshiba Hex CMOS Buffer used to make an oscillator to drive the MC145161 counter - used in the [Robin] Radio

 

Manuals

Zycomm Brochure Zycomm promotional Brochure (courtesy of https://radiohistory.uk/)
Zycomm Manual Zycomm FM5016 VHF Service Manual (courtesy of Dom G7NPW )
Neutec Manual Neutec SM-1645 VHF Radio Service Manual (courtesy of www.radiowrench.com/sonic web page)