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ELcon
Installation Guide
VFO Stabilizer for YAESU FT-101 Transceiver
Required Reference Manual - ELcon FLL VFO-Stabilizer
Consulting & Engineering
EL-34
Figure 1- FT-101 after EL-34 modification
Installation description
Version 1.0b
tested and written by Dave Bohlen, N0EDS
July 24, 2020
Telefon
Brunnhaldenstrasse 8
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3510 Konolfingen
E-Mail
Switzerland
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+41 (0) 31 792 04 61
+41 (0) 31 792 04 62
info@elcon.ch
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Table of Contents
Related Manuals for Elcon EL-34
Summary of Contents for Elcon EL-34
- Page 1 Switzerland Shop http://shop.elcon.ch EL-34 Installation Guide VFO Stabilizer for YAESU FT-101 Transceiver Required Reference Manual - ELcon FLL VFO-Stabilizer Figure 1- FT-101 after EL-34 modification Installation description Version 1.0b tested and written by Dave Bohlen, N0EDS July 24, 2020...
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Page 2: Table Of Contents
Final lead dress ........................9 Appendix ............................10 Ruler ............................. 10 Disclaimer of liability ......................10 Important! Hints or tips for the correct function of the EL-34. Watch it! Absolutely observe. July 24, 2020, © Elcon, Switzerland FT-101 Installation Guide_V1.0a_en.docx... -
Page 3: Introductory Remarks
The one in the picture is physically small and is soldered to the trans- former T-12 Just observe ufd's and voltage rating. I use double sided sticky tape to secure the EL-34 to the partition. Once it is secured and wires plugged in with JST plugs it is time to interface. -
Page 4: Installation Steps
Ground connection). We will turn this into ground mounting stud with the use of nut and ground lug. Position the EL-34 so the power wires are on the right end of board next to ground lug to keep lead length short. - Page 5 Then solder A+ wire to the capacitor attached to T-12. Once again, this capacitor is differ- ent sizes in different radios? In this radio the picture is of the original capacitor. Now the EL-34 is mounted and hooked to A+. You are now ready to begin interface. Figure 6- EL-34 DC connection July 24, 2020, ©...
- Page 6 I have labeled the VFO just to make it easy to identify connection points. 6-volt pin is not used. (1) Cut wires on left side of EL-34 to approximate length. Note there is a ground between every connection. Since the wires are short and all go to the same basic place, I opted to leave off one ground as it would be redundant in this application.
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Page 7: The Modification Of The Clar Control
2.2 The modification of the CLAR control. (1) Because of the way the EL-34 compensates for drift the wires on the Clarifier pot have to be reversed. Read tech manual if you want to understand why. (optional) (2) Remove radio from case to gain access to the back of the CLAR pot. - Page 8 (9) Solder to pot per Figure 11. Solder to left hand lug on back of CLAR pot. This will put the CLAR calibration pot back in the original spot. Figure 10- Extension wire used for the zero-point potentiometer Figure 11- Extension wire July 24, 2020, © Elcon, Switzerland FT-101 Installation Guide_V1.0a_en.docx Page8 / 10...
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Page 9: Final Lead Dress
(2) Perform start-up per manual. Confirm LED turns green! Check your work! Replace in case and enjoy. Figure 13 - Completed Top View July 24, 2020, © Elcon, Switzerland FT-101 Installation Guide_V1.0a_en.docx Page9 / 10... -
Page 10: Appendix
Any liability is excluded, both for direct and indirect damages and consequen- tial damages that may arise in connection with the use of the information contained in this document. July 24, 2020, © Elcon, Switzerland FT-101 Installation Guide_V1.0a_en.docx Page10 / 10...
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