C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

77 tach filter condenser

Thread Tools
 
Search this Thread
 
Old Sep 5, 2012 | 07:56 PM
  #1  
RichardC77's Avatar
RichardC77
Thread Starter
Intermediate
10 Year Member
 
Joined: Oct 2011
Posts: 44
Likes: 0
From: Dayton Ohio
Default 77 tach filter condenser

Can anyone recommend where it's possible to obtain the tach filter capacitor for a reasonable price? Paragon just raised their price to $50...and the best I've been able to find is about $30.... but I'm concerned with quality and customer service as well. Thanks for any suggestions.
Reply
Old Sep 5, 2012 | 09:00 PM
  #2  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Default

Do a SEARCH on the Forum for "tach filter schematic". Then, take that to Radio Shack and tell them you want the (2) resistors and (2) capacitors shown in that schematic. Probably not much more than $10.

Empty the present canister; wrap/insulate or "pot" the new circuit and stuff it in the can. Good to go...
Reply
Old Sep 5, 2012 | 09:27 PM
  #3  
NSC5's Avatar
NSC5
Safety Car
Supporting Lifetime
10 Year Member
 
Joined: Aug 2012
Posts: 3,960
Likes: 1,106
Default

I am not sure Radio Shack still carries all of this but assuming the schematic posted in this forum is correct below are the correct parts from Mouser. In particular, the 100 pf mica cap (high stability) probably isn't available from Radio Shack.

I do a lot of vintage electronic restoration work and I have used Mouser as my primary supplier for years. They are very large and the service is excellent, they are part of TTI which is a Berkshire Hathaway company. When checking out if you want the cheapest shipping select USPS instead of the default UPS, of course if you want fast they have various UPS delivery options. There is no minimum order or handling fee.

The parts listed in the PDF attachment have the mouser part number and they are higher quality (higher voltage rating, more precise tolerance) than those listed on the schematic so they should be fine. Of course you are on your own for soldering
Attached Images
File Type: pdf
Cart Print View.pdf (78.4 KB, 239 views)
Reply
Old Sep 5, 2012 | 09:36 PM
  #4  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

Most early 80's GM vehicles had a tach filter. Search eBay and other sources. I recall Year-One offered one around $30. Same for Ecklers, corvette America, Zip and others. $50 is out o' the question in this economy.

I bought my used replacement 'filter' for under $20 with shipping over 10 years ago but the prices should NOT have moved that much.

I even fabricated two (2) of my own before I found a used replacement. Funny, with a little ingenuity and parts from RadiosShack, you can make one for under $10 if you have patience, and can follow a diagram.
Reply
Old Sep 5, 2012 | 11:00 PM
  #5  
George Ries's Avatar
George Ries
Instructor
 
Joined: Mar 2012
Posts: 184
Likes: 0
From: Lancaster Pa
Default

corvette central
Reply
Old Sep 5, 2012 | 11:06 PM
  #6  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Default

I cannot imagine Radio Shack (or any other decent electronics supply store) not having those parts or their equivalents. "Let your fingers do the walking" and call them to find out.
Reply
Old Sep 5, 2012 | 11:10 PM
  #7  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

http://willcoxcorvette.com/product_i...ducts_id=26320

Use the sale code and save 10 percent off this price.

I have original used filters too... if interested send me an email to Support@willcoxcorvette.com
Reply
Old Sep 5, 2012 | 11:30 PM
  #8  
Shark Racer's Avatar
Shark Racer
Race Director
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Default

Has anyone found a source for the tach connectors? (Actually, I want the white battery connector as the clip on mine said goodbye a few years ago...)
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Sep 6, 2012 | 01:58 PM
  #9  
FourG's Avatar
FourG
Intermediate
Supporting Lifetime
 
Joined: May 2012
Posts: 29
Likes: 1
From: Portland OR
Default

Originally Posted by Shark Racer
Has anyone found a source for the tach connectors? (Actually, I want the white battery connector as the clip on mine said goodbye a few years ago...)
Is this it?

Corvette Central part number 663279

I was looking at getting this one for my Tach Filter to connect to the distributor side:

Corvette Central part number 663296

Anyone know if this is the correct application for a '76? Ours didn't come with a Tach Filter to reuse the connectors...
Reply
Old Sep 6, 2012 | 03:57 PM
  #10  
Shark Racer's Avatar
Shark Racer
Race Director
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Default

Those are them! thank you. Corvette Central always has oddball stuff like that.
Reply

Get notified of new replies

To 77 tach filter condenser





All times are GMT -4. The time now is 11:08 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE