Elecraft Builder Alert Archives

K1 Builder Alert Archive

K1 Builder alert #1: 1 Dec 2000 Minor T-R switch mod
K1 Builder Alert #2: 19 Dec 2000 Different Toroids in some band modules
K1 Builder Alert #3: 26 Feb 2001 Inability to hear the TX signal when making TX Offset Adjustment
K1 Builder Alert #4: 13 Feb 2001 RX Noise from KNB1
K1 Alert #5 and K2 Alert #20 24 March 2003 Wrong connector pin length on RF Board P1

 

K2 Builder Alert Archive

Builder's Alert #1 29 Jun 1999 Minor parts list typo.
Builder's Alert #2 29 Jun 1999 #6 Nylon Hardware on RF Board (S/N 101-240)
Builder's Alert #3 03 Jul 1999  Recommended change to C182 (S/N 101-260)
Builder's Alert #4 07 Jul 1999 MVAM109 Diodes (S/N 101-260)
Builder's Alert #5  07 Jul 1999  Speaker screws may be too short (S/N 101-260)
Builder's Alert #6 16 Jul 1999 BFO Range Improvement (S/N 1-311)
Builder's Alert #7 27 Aug 1999 Check for -20 Crystals in the BFO Envelope (S/N 101+)
Builder's Alert #8 20 Oct 1999 Change to SSB adapter for VOX (Rev B)
Builder's Alert #9 3 Feb 2000 Noise Blanker Changes for Improved Rx Dynamic Range (Only for NB's shipped before 1/31/00)
Builder Alert #10 23 Mar 2000 Possible Wrong Capacitor in SSB Kit
Builder's Alert #11 4 Apr 2000 K2 Application Note: 7185 kHz "warble"

K2 Builder' Alert #12a

11 May 2000 Remove LCD rear protective film if present.

K2 Builder's Alert #13

15 May 2000 Front Panel: PN5179's kitted instead of PN2222A's.
K2 Builder's Alert #14 16 Aug 2000 KAT2: 1M POTS shipped for R1, R2 on a small number of kits.
K2 Builder Alert #15 7 June 2001 Diagonal Lines on Rear of Front Panel LCD

K2 Builder Alert #16

 

26 Feb 2002 Fix for 'walking VFOs'. This fix is NOT needed if you have K2 S/N 2696 or later, or if your K2 firmware is version 2.02E or later.
K2 Builder Alert #17 DELETED  This alert has been replaced by Builder Alert #19.
K2 Builder Alert #18 15 Nov 2002 R19 on the RF board is the wrong value on K2s s/n 3000-3055. Also applies to Early BFO mod kits with 220 ohms at R19.
K2 Builder Alert #19 2 DEC 2002 Current Metering (C42 and C44) Replaces Alert #17
K2 Builder Alert #20  20 Mar 2003 Wrong connector pin length on RF Board P1