Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Mitchell 1260 lumitone improve midrange
#13

Happy New year to U also, Richard. When it comes to AA5s, I think that Everyone built them as cheaply as possible. Throughout the history of electronics, steps were taken to reduce the steps required to manufacture radios. The printed circuit board is a perfect example. eliminating power transformers, then remove the filament dropping resistor or cordohm was another. Even before printed circuit boards, reducing the bends required for a chassis was another step. So was the multiple capacitor "can".

Of course, the real revolution was the monolithic integrated circuit. Amazing to look at the parts count for the 30 tube RCA 630, then to some of the last USA built RCA color TVs with about 6 VLSI ICs, a flyback, a few transistors, controls, the CRT, a speaker and little else.

Unfortunately, the next step in lowering prices for electronic equipment was to offshore the entire electronics industry! We will live to regret this.

"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis

Best Regards, 

MrFixr55


Messages In This Thread
RE: Mitchell 1260 lumitone improve midrange - by MrFixr55 - 01-13-2023, 11:16 PM



Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM
Philco 42-345 Restoration/Repair
RodB You are European yourself   :evil: I'm Canadian for the last 30 years  :snowman: But not Yankee  :lol: Vlad95 — 10:49 PM
Philco 42-345 Restoration/Repair
The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM
Philco 42-345 Restoration/Repair
Hang in there...PaulPaul Philco322 — 09:30 PM

[-]
Who's Online
There are currently 859 online users. [Complete List]
» 1 Member(s) | 858 Guest(s)
Avatar

>