Author Topic: Analog HFBR amplifier  (Read 62 times)

Offline TMaxElectronics

  • High Voltage Technician
  • ***
  • Posts: 106
  • Karma: +4/-0
    • View Profile
    • My random (and very empty) electronics blog
Analog HFBR amplifier
« on: November 21, 2020, 08:08:47 PM »
I have noticed quite a few new old stock analog HFBR receivers popping up on ebay for cheap recently, and decided to try using them instead of the TTL ones usually used for interrupter inputs.
They can't just be used as a drop in replacement unfortunately, as they have an off state voltage of around 2V and (depending on the received signal strength) a 500mV higher on state level, but a simple transistor circuit can turn that into a 0-5V inverted TTL output:


just thought I'd put this here incase somebody else wants to use them :)

High Voltage Forum

Analog HFBR amplifier
« on: November 21, 2020, 08:08:47 PM »

 


* Recent Topics and Posts

post Re: steam engine
[Capacitor Banks]
davekni
November 28, 2020, 11:56:04 PM
post Re: steam engine
[Capacitor Banks]
Twospoons
November 28, 2020, 11:03:54 PM
post Re: mini tesla (hopefully not a fail)
[Beginners]
davekni
November 28, 2020, 07:45:38 PM
post Re: Setting over current protection for my drsstc
[Dual Resonant Solid State Tesla coils (DRSSTC)]
octopus1
November 28, 2020, 06:54:18 PM
post Re: HF Litz wire as a primary coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Da_Stier
November 28, 2020, 06:32:22 PM
post Re: Ericsson RRUS 11 B4 teardown
[Radio Frequency]
Da_Stier
November 28, 2020, 06:29:37 PM
post Re: Setting over current protection for my drsstc
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
November 28, 2020, 06:22:11 PM
post Re: Setting over current protection for my drsstc
[Dual Resonant Solid State Tesla coils (DRSSTC)]
octopus1
November 28, 2020, 03:10:04 PM
post Re: Setting over current protection for my drsstc
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 28, 2020, 12:36:05 PM
post Re: mini tesla (hopefully not a fail)
[Beginners]
bogdan
November 28, 2020, 08:16:41 AM
post Re: steam engine
[Capacitor Banks]
davekni
November 28, 2020, 06:35:48 AM
post Re: mini tesla (hopefully not a fail)
[Beginners]
bogdan
November 28, 2020, 06:22:44 AM
post Re: steam engine
[Capacitor Banks]
Twospoons
November 28, 2020, 06:04:33 AM
post Re: steam engine
[Capacitor Banks]
plasma
November 28, 2020, 04:36:08 AM
post Setting over current protection for my drsstc
[Dual Resonant Solid State Tesla coils (DRSSTC)]
octopus1
November 28, 2020, 12:37:32 AM
post Re: Single mosfet driving with GDT
[Solid State Tesla Coils (SSTC)]
Magneticitist
November 27, 2020, 10:57:31 PM
post Re: Ericsson RRUS 11 B4 teardown
[Radio Frequency]
Mads Barnkob
November 27, 2020, 10:33:30 PM
post Re: Single mosfet driving with GDT
[Solid State Tesla Coils (SSTC)]
costas_p
November 27, 2020, 08:42:35 PM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 27, 2020, 07:45:58 PM
post Re: mini tesla (hopefully not a fail)
[Beginners]
davekni
November 27, 2020, 07:35:55 PM
post Re: mini tesla (hopefully not a fail)
[Beginners]
bogdan
November 27, 2020, 05:09:54 PM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Max
November 27, 2020, 01:45:04 PM
post Re: HF Litz wire as a primary coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 27, 2020, 02:18:49 AM
post Re: compact midi interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
November 27, 2020, 01:17:40 AM
post HF Litz wire as a primary coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
TMaxElectronics
November 27, 2020, 12:33:29 AM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 26, 2020, 07:28:57 PM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
bozidar
November 26, 2020, 07:20:41 PM
post Re: QCW with replaceable ferrite-core primary
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 26, 2020, 06:48:34 PM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Max
November 26, 2020, 02:42:34 PM
post Re: Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
TMaxElectronics
November 26, 2020, 01:22:02 PM
post Question about arduino polyphonic MIDI interrupter
[Dual Resonant Solid State Tesla coils (DRSSTC)]
bozidar
November 26, 2020, 01:09:32 PM
post Re: AGFA ADC 5155 X-ray Scanner Teardown (4 part series)
[X-ray]
Mads Barnkob
November 26, 2020, 12:27:05 PM
post Re: QCW with replaceable ferrite-core primary
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
November 26, 2020, 12:07:11 PM
post Current transformer for measuring primary current
[Dual Resonant Solid State Tesla coils (DRSSTC)]
octopus1
November 26, 2020, 01:32:17 AM
post Re: SSTC issues (gate signal, interrupter-mode, grounding)
[Solid State Tesla Coils (SSTC)]
davekni
November 25, 2020, 09:57:26 PM
post Re: Polyphonic Interrupter with STM32F103C8T6 (Bluepill)
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Zipdox
November 25, 2020, 09:13:24 PM
post Re: SSTC issues (gate signal, interrupter-mode, grounding)
[Solid State Tesla Coils (SSTC)]
Max Seiringer
November 25, 2020, 09:01:22 PM
post Re: Slayer Exciter Mosfet Gate drive alternative?
[Solid State Tesla Coils (SSTC)]
Magneticitist
November 25, 2020, 07:13:17 PM
post Re: Ericsson RRUS 11 B4 teardown
[Radio Frequency]
Da_Stier
November 25, 2020, 05:21:28 PM
post Ericsson RRUS 11 B4 teardown
[Radio Frequency]
Da_Stier
November 25, 2020, 11:26:39 AM
post Re: Peak Primary current in small DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Jesperb123
November 25, 2020, 10:45:43 AM
post Re: SSTC issues (gate signal, interrupter-mode, grounding)
[Solid State Tesla Coils (SSTC)]
davekni
November 25, 2020, 01:56:06 AM
post Re: SSTC issues (gate signal, interrupter-mode, grounding)
[Solid State Tesla Coils (SSTC)]
Max Seiringer
November 24, 2020, 11:12:02 PM
post Re: Peak Primary current in small DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
November 24, 2020, 10:44:00 PM
post Re: QCW with replaceable ferrite-core primary
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 24, 2020, 07:52:01 PM
post Re: QCW with replaceable ferrite-core primary
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
November 24, 2020, 05:32:56 PM
post Re: Peak Primary current in small DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Jesperb123
November 24, 2020, 05:09:57 PM
post Re: Peak Primary current in small DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
November 24, 2020, 04:57:21 PM
post Re: Peak Primary current in small DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Jesperb123
November 24, 2020, 03:37:11 PM
post Re: Safety relay (emergency stop) with galvanic isolation
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Netzpfuscher
November 24, 2020, 01:16:46 PM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal