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Tom Uploading any firmware through Xloader will not damage the boot area on Arduino Nano. Check if the serial port is recognized normally. Also check that CAT communication is being performed. If your

re prev message , PM,? on suggestion of diode switch of BPF element. Using a? ?BAT 592 PIN diode is better than trying to press a small sig diode into duty.? If you cannot source this part then

hi all bitx40 has arrived so watch this space first job is get it going as delivered next see if i can get it onto 80 thanks Allard for info on sketch terry

Hello Kees, Please count me for one complete kit and relays 6xLPF 73’s de Jacques – F1APY Sent: Thursday, September 13, 2018 8:50 PM To: [email protected] Subject: Re: [BITX20] K5BCQ uBITX Relay

Kees If this kit is still available, happy to pay the asking $30 + 4 for shipment to 01886 in MA. Kindly let me know availability, and if so how you would like to receive payment (PayPal, check, MO

LOOK at the picture, please ...Thats WHY I labeled EVERYTHING I could think of ...-27DB input ..O DB output Frequency LABEL across bottom...I agree that you will NEVER get flat gain in the PA "as

I could be wrong about the device, but read someone well known referred to the 2n2222 as the cockroach that would not die as it seems like that one has been around for 50 or more years. de ku4pt

Thank you Kees Is it safe to assume that the emitter resistors for Q911 and Q912 are to be changed to 11 ohms as was done with the driver pairs? Ripley KD8UYQ Sent from Mail for Windows 10 Sent:

On Thu, Sep 13, 2018 at 06:24 PM, Jim Tibbits wrote: nearly flat across the passband (10 meters is about 5-6 db down) Jim, Is it flat or does it fade by 5-6db at the 10m end?? ?Seems a

You guys are just getting silly now ...Pushing 3904's indeed ,,,Just breadboarded the DC circuit in the PA (22 ohm emitter resistor, 100 ohm base bias and 1k collector ..Guess what? 20.1 ma ...EMRFD

ka9koj here, jeff i ordered a 45 mhz filter too to take care of the spurs. as for the harmonics , i plan to leave the filters alone on the board and build an external filter box manually switched.

Kees, Yes they are being pushed and for the 5th time in this conference its more than that the 3904 does not maintain its gain with increased current unlike the 2n2222A.? ? Dig back its here.

All take care on this transistor in terms of what case size you get it in.. it was manufactured in two sizes T0-39 and the smaller TO-18 metal case size.? It appears from the Newark description?

For those who worry about the 2N3904. This is a big brother that was used a long time ago, a step up from the 2N2222A, just bigger.

Nick, The Spec Ft is the same for both 2N2222A and 2N3904 .....300 MHz, but the Ic max for the 2N2222A is more than twice that of the 2N3904. Someone (Allison ?) had mentioned the 2N3904s were really

Hello Ripley, Q92/Q93, Q96/Q97, Q911/Q912 73 Kees K5BCQ

Hello Art, A complete 6x kit includes: a 6x board, 12 relays, 6 blank LPF boards, headers, diodes, capacitors and a 6 position rotary switch for $30 plus $4 for postage in the USA. 73 Kees K5BCQ

$0.0358 each is not bad. Let us know how this goes. Moving to a BS170 would take significant changes to the circuit. A 2n5109 or 2n3866 is going to cost more than $0.0358 I'd probably build a really

Hello Kees, I replaced the two pair of driver transistors with metal can 2N2222As early on in my build per Allison’s recommendation to even out the power across the bands. What is the third pair of

Most semiconductor FAB shops use ring oscillators spread at strategic location on a wafer to characterize transistor behavior parameters. This is one of the most common techniques to validating the