TH VCO-1 parts list in the making

Hedefar · Joined: Feb 07, 2013 Posts: 15 Location: Denmark

Hey guys,

I'm planning on building the Thomas Henry VCO-1.
But because I am still a DIY newbie, I felt that I was missing a summary of all the parts that would be used, in order to help me better understand the proportions and expenses of the project. Therefore, I have made a spreadsheet containing all the needed parts.

The spreadsheet can be found here and was based on the schematics that can be found here.

But because I am inexperienced, I would like it if someone could look through the list while looking at the schematics, and comment on what kind of capacitors I should choose in the different places. Apart from the caps, I think everything else is in place but I am open to (and hoping for) suggestions for improvement.

Please let me know what you think of this list.
If you think that it is useful, I will send it to Scott Stites so he can add it to the website, if he wants to.

elmegil · Posted: Sun Feb 17, 2013 8:01 pm Post subject:

I checked list to schematic, marking off the list and it looks good from that direction. I didn't go back and do it the other way, marking off on the schematic...

Hedefar · Joined: Feb 07, 2013 Posts: 15 Location: Denmark

Hedefar · Joined: Feb 07, 2013 Posts: 15 Location: Denmark

elmegil · Posted: Mon Feb 18, 2013 5:58 am Post subject:

In general I haven't yet found any practical difference between using polystyrene, mylar film, or C0G/NP0 ceramics. Part of the point is that you need to use a high quality cap that is temperature stable.

Of course, keep in mind I've been doing this just about a year now, so you should pay more attention to things more experienced folks have to say Smile

.