diff --git a/src/devices/machine/6522via.cpp b/src/devices/machine/6522via.cpp
index f9b61761a6c..7d62512bea3 100644
--- a/src/devices/machine/6522via.cpp
+++ b/src/devices/machine/6522via.cpp
@@ -463,7 +463,7 @@ void via6522_device::device_timer(emu_timer &timer, device_timer_id id, int para
 			{
 				if (SI_O2_CONTROL(m_acr) || SO_O2_CONTROL(m_acr))
 				{
-					m_shift_timer->adjust(clocks_to_attotime(1) / 2);
+					m_shift_timer->adjust(clocks_to_attotime(1));
 				}
 				else if (SO_T2_RATE(m_acr) || SO_T2_CONTROL(m_acr) || SI_T2_CONTROL(m_acr))
 				{
diff --git a/src/mame/video/vectrex.cpp b/src/mame/video/vectrex.cpp
index 48705b1f9fd..c73bce34c9e 100644
--- a/src/mame/video/vectrex.cpp
+++ b/src/mame/video/vectrex.cpp
@@ -6,7 +6,7 @@
 #include "cpu/m6809/m6809.h"
 
 
-#define ANALOG_DELAY 7800
+#define ANALOG_DELAY 8500
 
 #define INT_PER_CLOCK 550