Discrete DSB modulator without transfmormers

Status
Not open for further replies.

neazoi

Advanced Member level 6
Joined
Jan 5, 2008
Messages
4,157
Helped
13
Reputation
26
Reaction score
15
Trophy points
1,318
Location
Greece
www.microwave.gr
Activity points
37,198
Hello, I am trying to make a Discrete DSB modulator without transfmormers fpr a single frequency around 9MHz.
I have found some interesting schematics on the net.
https://zpostbox.ru/single_balanced_mixer_circuit.html

I would like your ideas of how to transform them to use no coils as well. For example on the varicap schematic how should I replace the transformer to a balanced-to-unbalanced circuit.
Performance is not so critical.
 

Attachments

  • DBM_BJT_without_Transformers.gif
    7.2 KB · Views: 102
  • dbm.png
    17.4 KB · Views: 65
  • bm.png
    12.2 KB · Views: 73
Last edited:

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…