Search found 8 matches

by Chris t
Sat Mar 15, 2014 2:31 am
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

Thank you for all the help - that's really rather disappointing and suggests the device is totally pointless? If the actual reading does not matter then why not just fit 2 resistors as a divider for less than a penny rather than all this effort? Only 1 was required for a Legacy so we had hoped that ...
by Chris t
Fri Mar 14, 2014 1:33 am
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

FIXED VERSION Input Output 0.00 0.00 0.50 0.80 0.75 1.39 1.00 1.95 1.25 2.44 1.50 2.81 1.75 3.15 2.00 3.42 2.25 3.67 2.50 3.88 2.75 4.05 3.00 4.13 3.25 4.13 3.50 4.13 3.75 4.13 4.00 4.13 4.25 4.13 4.50 4.13 4.75 4.13 5.00 4.13 Graph at: http://i156.photobucket.com/albums/t15/Chris-t123/FCD---Fixed-G...
by Chris t
Thu Mar 13, 2014 8:21 pm
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

ADJUSTABLE Input Output 0.00 0.00 0.50 0.82 0.75 1.45 1.00 2.08 1.25 2.63 1.50 3.05 1.75 3.39 2.00 3.68 2.25 3.92 2.50 4.10 2.75 4.27 3.00 4.40 3.25 4.51 3.50 4.61 3.75 4.70 4.00 4.78 4.25 4.85 4.50 4.91 4.75 4.96 5.00 5.00 The clamp can be set on the adjuster from 2.5v to 5v, in which output never ...
by Chris t
Wed Mar 12, 2014 9:11 pm
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

OK. Just built a fixed one and tested it. Voltage clamped at 4.13 volts but output is not equal to input. I'm convinced due to the wonders of Eagle that I must have the design right and am wondering if either:- a:- My test procedure is not correct? b:- I have misunderstood the function of this devic...
by Chris t
Wed Mar 12, 2014 6:26 pm
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

OK. Thanks. I'll try that and see what happens.
by Chris t
Mon Mar 10, 2014 1:50 am
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

Hi, Thank for taking a look - I must have done something fundamental wrong here, and have spent longer trying to figure it out than they took to draw, route, mill and make!! Feeling like a bit of a dimwit as reading the thread everyone seems to have got them working with no issues and I have 3 that ...
by Chris t
Sun Mar 09, 2014 2:27 pm
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

Josh, Many thanks for that and the reply. All as per the eagle files and board below - appologies for quality of soldering but all checked for good connection despite scruffy looks. http://i156.photobucket.com/albums/t15/Chris-t123/FCDAdj01_zpsdfce5012.png http://i156.photobucket.com/albums/t15/Chri...
by Chris t
Fri Mar 07, 2014 11:33 am
Forum: Turbo
Topic: Cheap Electronic FCD - Revised
Replies: 195
Views: 97138

Re: Cheap Electronic FCD - Revised

Hi everyone. Spent an interesting time reading through the thread - seems some of the links to products are dead since its a pretty old thread, but a really interesting read. I saw the page some time ago and a couple of mates wanted FCDs but were shocked by cost of commercial ones so asked me to mak...