Poszukując w sieci o przekaźnikach  "
hi voltage"   znalazłem 
http://www.te.com/documentation/whitepap...Relays.pdf
http://relays.te.com/kilovac/
"Usable in RF devices"
czyli można by coż wybrać...  pozostaje kwestia  
ceny i dostępności...  :-)
http://relays.tycoelectronics.com/datasheets/pd10.pdf
http://relays.te.com/datasheets/ev41a.pdf
http://relays.te.com/datasheets/pd5.pdf
http://relays.tycoelectronics.com/datash...c1_3_5.pdf
....  ach te ceny...
fajny materiał do poczytania
http://relays.te.com/kilovac/hvintro/commondesigns.asp
=====================================
szukając dalej znalazłem  :-)
http://www.gigavac.com/products/relays/ham/index.htm
EXCLUSIVELY FOR AMATEUR RADIO OPERATORS
 Only amateur operators that meet the following requirements can purchase these relays.
Orders must be placed in writing (letter, fax or e-mail) directly with our headquarters near Santa Barbara and in US dollars. These relays with special pricing are not available through our international representatives.
FOB Carpinteria California, USA
The relays must be paid for by credit card (VISA, MasterCard, or American Express)
The name on the credit card must match the name on your call letters.
Your call letters must be registered in your name on http://www.ARRL.org or http://www.QRZ.com.
In a 12 month period, you may purchase up to 3 relays of any given part number or a maximum of 5 relays total.
GIGAVAC reserves the right to modify or cancel this program without notice.
i w końcu ktoś podał  moce i napięcie dla częstotoliwości HF w postaci ładnego zestawienia
Rated Operating Voltage
Max. Continuous Current
2.5 MHz	16 MHz	32 MHz
najtańszy model   77 dolców   http://www.gigavac.com/products/relays/d.../index.htm
5A @1100V  @ 32 MHz ...
i są tabele zamienników dla znanych producentów...   tylko  te ceny...
... to na tym można zakończyć rozpoznanie....   i  pomyśleć nad alternatywą rodem  home-made...  a to nie będzie łatwe ...