The AM Forum
March 02, 2026, 10:20:20 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: 3 KW of audio for $267!  (Read 10197 times)
0 Members and 1 Guest are viewing this topic.
Bill, KD0HG
Moderator
Member

Offline Offline

Posts: 2544

304-TH - Workin' it


« on: December 06, 2007, 01:29:42 PM »

WOW!



* amp.jpg (36.85 KB, 354x224 - viewed 516 times.)
Logged
WA3VJB
Guest
« Reply #1 on: December 06, 2007, 02:19:26 PM »

Diesel, eh ?

Probably sounds like this:

Logged
Bill, KD0HG
Moderator
Member

Offline Offline

Posts: 2544

304-TH - Workin' it


« Reply #2 on: December 06, 2007, 02:57:32 PM »

What year was that ad from?

A diesel Chevette would prolly get the better part of 60 MPG!
Logged
WA1GFZ
Member

Offline Offline

Posts: 11151



« Reply #3 on: December 06, 2007, 03:11:05 PM »

with an aluminum block good for 40K miles
Logged
Bill, KD0HG
Moderator
Member

Offline Offline

Posts: 2544

304-TH - Workin' it


« Reply #4 on: December 06, 2007, 03:54:42 PM »

At what I'd guess to be 5 KW input for 3 KW "RMS" output, that little thing would draw over 400 amps at 12 V.
It would stall the engine on any '86 Honda Civic hatchback that it was installed in.

I think there's a truth in advertising issue here.
Logged
flintstone mop
Contributing
Member
*
Offline Offline

Posts: 5048


« Reply #5 on: December 06, 2007, 07:02:53 PM »

YUP
The energy crunch from the middle 70's and GM's fake diesels.

Fred
Logged

Fred KC4MOP
KA1ZGC
Guest
« Reply #6 on: December 06, 2007, 08:54:10 PM »

We had a diesel Chevette. Circa 1981, IIRC.

Ran just fine until it got wrecked in 1985. Don't remember the mileage it got.

Had to plug it in at night to make sure it started in the morning. Pretty comical, really. Sounded not too unlike a diesel VW of the day.

Got a lot of suprised looks when you fired it up, though!

--Thom
Kilimanjaro Africa One Zulu Goat Cheese
Logged
WU2D
Contributing
Member
*
Offline Offline

Posts: 1797


CW is just a narrower version of AM


« Reply #7 on: December 06, 2007, 10:17:24 PM »

I actually had a first year Chevette (1976) as my second car when I lived in FL when I was a youngster working for Mot. It had an Opal 4 cyl. GM could not figure out how to make their engine work so they bought one from Europe. Ran like a top.

Mike
Logged

These are the good old days of AM
Bill, KD0HG
Moderator
Member

Offline Offline

Posts: 2544

304-TH - Workin' it


« Reply #8 on: December 06, 2007, 10:34:38 PM »

Did a Google for Diesel Chevette and found these words of wisdom:

"The Diesel Chevette is the maggotgulp in a plate of bad clams. It has all the charm of Ipecac and the desirablity of ringworm. It makes a good pit car, in that if you have a pit, a diesel Chevette is a good thing to throw in it. If you can find it in the stripper "Scooter" trim, you have not just hit the bottom of the barrel, you've started to furiously dig.

If you are looking at one in the near future, there are a few key items to look for:
1) Any other car with the possible exception of the Cosworth Vega or Triumph Stag.
2) Disinfectant. Make sure that some is handy. Tetanus is bad, but necrotizing bacteria is far worse.
3) A serious re-evaluation on what you consider imporant in life.

No matter the condition of a Chevette, they can be had for very little. That is, of course, if self-respect, adequacy, image and quality hold no value for you whatsoever. Otherwise, the price is far too much. A free Chevette in mint condition should be met with the same joy as receiving free herpes.

Yeah, I owned one. "
Logged
Tom W2ILA
Member

Offline Offline

Posts: 303


« Reply #9 on: December 07, 2007, 08:48:55 AM »

I know a spot in Wilton, CT where an avid Chevette fan has compiled a field of Chevette dreams.  A Chevette collector would go ga-ga over the huge collection of Chevettes parked in this small area.  I checked it out.  There were 4 speeds, 8 tracks, CB rigs, hub caps, 2-door, 4-door: almost every configuration of Chevette imaginable.  This guy knows what he is doing.  There will be a huge resurgence of 1980's iron and the restoration shops and reality shows are going to search these things out.  Barrett-Jackson will probably have a few next year.

TM 
Logged
W3SLK
Member

Online Online

Posts: 2771

Just another member member.


« Reply #10 on: December 07, 2007, 09:19:58 AM »

Mack said:
Quote
don't recall what year it was but my wife owned a Chevette with the gas 'Iron Duke' 4 cylinder engine. It still ranks as one of the best and cheapest to operate cars ever owned here. Over 200,000 miles and never a problem, only normal maintenance items done. I later learned that 250k-300k was considered the 'design life' for that engine before needing a total rebuild, maybe she sold it just in time?

If I remember correctly Mack, the Iron Duke came out, albeit too late to save the damage done by the aluminum blocks being used in the Vega's.
Logged

Mike(y)/W3SLK
Invisible airwaves crackle with life, bright antenna bristle with the energy. Emotional feedback, on timeless wavelength, bearing a gift beyond lights, almost free.... Spirit of Radio/Rush
k7yoo
Member

Offline Offline

Posts: 404


WWW
« Reply #11 on: December 07, 2007, 10:25:50 AM »

You guys are missing a real opportunity here. Use this amp as a high power modulator--a real cheap date. I have several of these that I picked up at garage sales and have been wanting to experiment with. Perhaps a big filament transformer could be used as the mod iron?
BTW:
The Chevette iron duke motor is very durable-I have been considering adapting one to my Austin A40

Skip
Logged
WA1GFZ
Member

Offline Offline

Posts: 11151



« Reply #12 on: December 07, 2007, 04:16:10 PM »

When I lived in LA I had a neighbor who had a 350 in one. He gave me a ride once and I noticed the floor flex under my feed every time he punched it.   
Logged
Ed KB1HVS
Member

Offline Offline

Posts: 962


« Reply #13 on: December 07, 2007, 05:22:38 PM »

 My  father owned a black one as a cheaper alternative "around town" car. Yeesh! He canned it and bought a Corolla less than a year later. Drove the Toyota 190ks later to the junkyard still  running like it was new. Road salt and pot holes did it in.
Logged

KB1HVS. Your Hi Value Station
WBear2GCR
Member

Offline Offline

Posts: 4153


Brrrr- it's cold in the shack! Fire up the BIG RIG


WWW
« Reply #14 on: December 07, 2007, 07:34:43 PM »


Almost all of the modern high power car amps are now digital.
In essence a modulated switching supply.
High efficiency.
Not much bandwidth, although that is improving.

Not sure if that was 3,000watts into 1 ohm (likely).
So: 1500/2ohm; 750/4ohm; 375/8ohm!  Grin

(ignoring losses)

Ok now?

High current, not high voltage.
Car dudes seem to like running very low Z speakers.
Probably because alternators and batts make current, not voltage.

             _-_-bear
Logged

_-_- bear WB2GCR                   http://www.bearlabs.com
W1RKW
Contributing
Member
*
Offline Offline

Posts: 4519



« Reply #15 on: December 08, 2007, 08:37:40 AM »

The ad looks like it is from 84 or 85 time.  I had an 85 'vette.  One of the most reliable cars I have had.  I retired it with 260,000miles.

I had a big chuckle yesterday when returning home from work.  Saw this older model VW GTI. Imagine this, the thing was jacked up in the back and had big tires.  Little tires in the front with a fart pipe on it.
Logged

Bob
k7yoo
Member

Offline Offline

Posts: 404


WWW
« Reply #16 on: December 08, 2007, 05:22:30 PM »

Speaking of weird VW visions--I saw an older Rabbit on the road a few winters back--with chains on the rear..
Skippy
Logged
The Slab Bacon
Member

Offline Offline

Posts: 3929



« Reply #17 on: December 08, 2007, 06:38:39 PM »

Speaking of weird VW visions--I saw an older Rabbit on the road a few winters back--with chains on the rear..
Skippy


Must have been an SSB operator Grin Grin
Logged

"No is not an answer and failure is not an option!"
KB2WIG
Contributing
Member
*
Offline Offline

Posts: 4480



« Reply #18 on: December 08, 2007, 09:15:24 PM »

Thats the Marx's VW version .....
Logged

What? Me worry?
wa2zdy
Guest
« Reply #19 on: December 09, 2007, 12:36:44 PM »

Speaking of weird VW visions--I saw an older Rabbit on the road a few winters back--with chains on the rear..
Skippy

Who was it that said "there's a genius born every day?"
Logged
Bill, KD0HG
Moderator
Member

Offline Offline

Posts: 2544

304-TH - Workin' it


« Reply #20 on: December 09, 2007, 01:10:34 PM »

Speaking of weird VW visions--I saw an older Rabbit on the road a few winters back--with chains on the rear..
Skippy

Was he backing up?
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.045 seconds with 14 queries.