F1 Group Buy
*** GB is Now Closed ***
Contact hifimaker directly to see if any extra boards are available.
**How to Pay**
Boards will be ordered Jan. 14th, 2009
Please pay for your boards via
PayPal using the following link:
https://www.hifimaker.com/boards.html
If you do not have
PayPal, payment can still be made with a credit card during checkout. The Buy button defaults to 2 boards for 2 channels. Additional boards and shipping options are available during checkout. Please email if you have any questions. Any balance above actual costs will be donated to DIYAudio.com.
We may have a few boards leftover after the GB closes, but order before the deadline to guarantee a set.
Thank you Nelson for your VERY generous approval of our DIY non-commercial F1 GB.
The F1 is a balanced input transconductance amplifier for high efficiency speakers such as Lowther's, Fostex's, or Jordan's.
This F1 board design and build thread is located in the Pass Labs forum:
https://www.diyaudio.com/forums/showthread.php?s=&threadid=135115
Board specifications:
- The boards are 0.062" FR-4 epoxy glass
- Double sided, green solder mask on both sides, and with a silk screen on the top layer.
- The copper traces are 1 1/4 oz.
- Dimensions are 2"x9" or 50.8mm x 228.6mm.
- The top layer is a ground plane.
Approximate Cost:
- Prices will be set once the totals are known. 50 boards are $14.00 each, 70 boards are $13 each, 100 boards are $11 each.
- plus shipping which is probably a buck to deliver a pair of boards in the US, international slightly more.
- Board costs are rounded up to the nearest dollar, with any extra going to DiyAudio
? as a donation
- Payment via
PayPal only
F1 Service Manual with Schematics:
https://www.firstwatt.com/downloads/f1_srv_man.pdf
F1 BOM:
https://www.hifimaker.com/documents/F1-BOM.pdf
F1 Board Pics:
https://www.hifimaker.com/F1_DIY_Amp.html
F1 Assembly Guide:
https://www.hifimaker.com/F1_DIY_Amp.html
The PCB is for 1 channel only.
Please enter your name and amount of pcbs and update the Grand Total:
| Username | # of F1 amp boards (2 needed for Stereo) | Country | Comments |
| hifimaker | 4 | USA | |
| MEGA-Amp | 6 | USA | |
| mithomas | 2 | USA | |
| Planet10 | 4 | Canada | |
| SteveA? | 2 | USA | |
| valo | 2 | Norway | |
| samsagaz | 4 | Argentina | |
| vonfilm | 2 | USA | |
| rpafenberg | 2 | USA | |
| audiotux | 2 | Germany | |
| Guiness | 2 | USA | |
| Stroob | 2 | USA | |
| Kraljmatjaz | 2 | Italy | |
| JimS | 4 | USA | |
| caligula455 | 4 | USA | |
| markgall | 4 | USA | |
| audiotony | 2 | USA | |
| pchw | 2 | USA | |
| sad mafioso | 2 | USA | |
| ipolyakov | 2 | USA | |
| joschl | 4 | Germany | |
| andy2667 | 4 | Hong Kong | |
| gjorgji | 4 | Canada | |
| Belkinmousepad | 2 | USA | |
| vegges | 2 | USA | |
| ljk11 | 2 | USA | |
| Woody | 2 | USA | |
| ejfud | 2 | USA | |
| AlanElsdon? | 4 | UK | |
| CfM? | 4 | Germany | |
| SoapSeller? | 4 | Israel | |
| Marec | 2 | UK | |
| Khundude | 4 | Canada | |
| HIPCHECK | 2 | USA | |
| Phil Townsend | 4 | USA | |
| naamanf | 4 | USA | |
| cgrums | 2 | USA | |
| cprof1 | 2 | USA | |
| wlhuang | 4 | TAIWAN | |
| heinz1 | 2 | Germany | |
| hayenc | 4 | USA | |
| Pillendreher | 2 | Germany | |
| masag1 | 2 | Germany | |
| folkeb | 2 | Norway | |
| rsotirov | 2 | Canada | |
| steenoe | 2 | Denmark | |
| grenert | 2 | USA | |
| Donovad | 2 | USA | |
| Grand Total | 132 | Grand Total | |
