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Modification Instructions

Yaesu FT-301D, Modification Instructions

The Yaesu FT-301D is a classic HF transceiver known for its reliability and versatility. For those looking to make modifications or repairs, detailed instructions can be found in the free user manual available for download on 88.208.23.73:8080. Unlock the full potential of your radio with these essential resources.

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EL

con

Consulting & Engineering

Brunnhaldenstrasse 8
3510 Konolfingen
Switzerland

Telefon
Fax
E-Mail
Shop

+41 (0) 31 792 04 61
+41 (0) 31 792 04 62

http://shop.elcon.ch

Modification VFO

reversal of rotations

Yaesu FT-301D

Modification instructions

April 10, 2019

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Summary of Contents for FT-301D

Page 1: ...nnhaldenstrasse 8 3510 Konolfingen Switzerland Telefon Fax E Mail Shop 41 0 31 792 04 61 41 0 31 792 04 62 info elcon ch http shop elcon ch Modification VFO reversal of rotations Yaesu FT 301D Modific...

Page 2: ...e variable capacitor 4 2 1 Removing the spreaders in the VFO variable capacitor 4 2 2 Mechanical adjustment of the VFO variable capacitor 5 2 3 Functional test 6 3 Changing the direction of rotation o...

Page 3: ...fferent bands Band Crystal Thus the VFO frequency runs in opposite direction to the premixer frequency and thus also to the transmit frequency Tx frequency Figure 2 The variable capacitor of the VFO i...

Page 4: ...Removing the spreaders in the VFO variable capacitor Remove the four screws and the VFO cover Remove very carefully without bending the rotor plate of the variable capacitor VC801 both fiber glass sp...

Page 5: ...unit so that the open variable capacitor is easily accessible from above and the tuning knob at the front Loosen do not unscrew the two grub screws of the gear wheel on the axis of the rotary capacito...

Page 6: ...hear the noise over the entire tuning range without interruption If the noise suddenly decreases at any position of the VFO knob the rotor plates of the variable capacitor are touching the stator In...

Page 7: ...ability Any actions based on the information contained in this document are taken at the user s own responsibility Any liability is excluded both for direct and indirect damages and consequential dama...

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